This is a great idea. Here's the top 250 VsX after making an adjustment along these lines (seven years, unweighted, using a replacement level of 60):
Rank | Player | ADJ | OLD | DIFF
1 | Wayne Gretzky | 156.6 | 155.6 | 1
2 | Phil Esposito | 131 | 130.4 | 0.6
3 | Mario Lemieux | 128.3 | 119.8 | 8.5
4 | Gordie Howe | 126.3 | 125.5 | 0.7
5 | Bobby Orr | 118.3 | 114.8 | 3.4
6 | Jaromir Jagr | 117 | 114.2 | 2.9
7 | Bobby Hull | 109.6 | 108.3 | 1.3
8 | Stan Mikita | 109.1 | 107.8 | 1.3
9 | Guy Lafleur | 108.2 | 104.5 | 3.7
10 | Jean Beliveau | 107.7 | 105.7 | 1.9
11 | Ted Lindsay | 106.3 | 104.4 | 1.9
12 | Sidney Crosby | 105.4 | 101.8 | 3.7
13 | Howie Morenz | 104.1 | 102.2 | 1.9
14 | Marcel Dionne | 103.6 | 103.3 | 0.3
15 | Maurice Richard | 103.5 | 102.4 | 1.1
16 | Charlie Conacher | 102.7 | 96.2 | 6.5
17 | Bill Cowley | 102.4 | 97 | 5.3
18 | Andy Bathgate | 101.6 | 101.1 | 0.5
19 | Joe Sakic | 101 | 97.7 | 3.3
20 | Alex Ovechkin | 100.4 | 98.4 | 2
21 | Syl Apps Sr | 99.6 | 92.4 | 7.2
22 | Bernie Geoffrion | 98.9 | 89.9 | 9
23 | Peter Forsberg | 98.6 | 90.3 | 8.2
24 | Mike Bossy | 97 | 94.8 | 2.3
25 | Joe Thornton | 96.7 | 95.6 | 1.1
26 | Evgeni Malkin | 96.4 | 89.2 | 7.2
27 | Bill Cook | 96.4 | 96 | 0.4
28 | Bryan Trottier | 96.2 | 93.7 | 2.5
29 | Teemu Selanne | 95.8 | 92.7 | 3.1
30 | Eric Lindros | 95.6 | 85 | 10.6
31 | Frank Boucher | 95.5 | 95.1 | 0.4
32 | Steve Yzerman | 94.8 | 93.2 | 1.6
33 | Adam Oates | 93.4 | 90 | 3.3
34 | Max Bentley | 93 | 90.4 | 2.6
35 | Busher Jackson | 92.9 | 89.5 | 3.4
36 | Martin St. Louis | 92.7 | 92.4 | 0.3
37 | Sweeney Schriner | 92.7 | 91.3 | 1.4
38 | Mark Messier | 92.4 | 89.6 | 2.8
39 | Milt Schmidt | 92.3 | 86.9 | 5.5
40 | Jean Ratelle | 92 | 89.6 | 2.4
41 | Bobby Clarke | 92 | 90.4 | 1.5
42 | Nels Stewart | 91.8 | 90.3 | 1.5
43 | Gordie Drillon | 91.6 | 86.7 | 4.8
44 | Peter Stastny | 91.5 | 88.4 | 3
45 | Jari Kurri | 91.4 | 88.1 | 3.3
46 | Brett Hull | 91.3 | 88 | 3.4
47 | Doug Bentley | 91.2 | 86.6 | 4.6
48 | Norm Ullman | 90.8 | 89.5 | 1.4
49 | Dickie Moore | 90.6 | 85.4 | 5.1
50 | Roy Conacher | 90 | 85.2 | 4.8
51 | Marty Barry | 89.9 | 89.6 | 0.4
52 | John Bucyk | 89.9 | 88.7 | 1.2
53 | Ron Francis | 89.9 | 87.4 | 2.5
54 | Mark Recchi | 89.8 | 88.4 | 1.4
55 | Frank Mahovlich | 89.7 | 87.8 | 1.9
56 | Paul Coffey | 89.7 | 88.1 | 1.6
57 | Patrick Kane | 89.2 | 84.5 | 4.7
58 | Pavel Bure | 89.2 | 85.2 | 4
59 | Elmer Lach | 89 | 86.1 | 2.9
60 | Paul Kariya | 88.8 | 84.9 | 3.9
61 | Sid Abel | 88.7 | 87.3 | 1.4
62 | Henri Richard | 88.6 | 85.2 | 3.4
63 | Jarome Iginla | 88.6 | 86.7 | 1.9
64 | Darryl Sittler | 88.4 | 85.7 | 2.7
65 | Steven Stamkos | 88.2 | 83 | 5.2
66 | Pierre Turgeon | 88 | 82.1 | 5.8
67 | Daniel Alfredsson | 87.9 | 82.3 | 5.6
68 | Denis Savard | 87.5 | 85.5 | 1.9
69 | Toe Blake | 87.1 | 86.3 | 0.8
70 | Gilbert Perreault | 87.1 | 85.7 | 1.4
71 | Ziggy Palffy | 87.1 | 80.1 | 6.9
72 | Ryan Getzlaf | 86.7 | 82.1 | 4.6
73 | Pavel Datsyuk | 86.6 | 82.5 | 4.1
74 | Ilya Kovalchuk | 86.6 | 83.9 | 2.6
75 | Dale Hawerchuk | 86.3 | 86 | 0.3
76 | Rod Gilbert | 85.9 | 83.1 | 2.8
77 | Luc Robitaille | 85.8 | 84.2 | 1.6
78 | Mike Modano | 85.7 | 81.5 | 4.2
79 | Ken Hodge | 85.7 | 83.2 | 2.4
80 | Alex Delvecchio | 85.6 | 84.8 | 0.8
81 | Theoren Fleury | 85.4 | 82 | 3.4
82 | Nicklas Backstrom | 85.3 | 83.2 | 2
83 | Pat LaFontaine | 84.9 | 78.5 | 6.4
84 | Markus Naslund | 84.7 | 82.9 | 1.9
85 | Alexander Mogilny | 84.6 | 77.7 | 6.9
86 | Syd Howe | 84.6 | 83.9 | 0.7
87 | Henrik Sedin | 84.5 | 84.5 | 0
88 | Jason Spezza | 84.4 | 79.1 | 5.3
89 | Mats Sundin | 84.3 | 82.1 | 2.1
90 | Doug Gilmour | 83.6 | 82 | 1.6
91 | Keith Tkachuk | 83.6 | 79 | 4.5
92 | Marian Hossa | 83.5 | 82.4 | 1.2
93 | John LeClair | 83.4 | 81.7 | 1.7
94 | Sergei Fedorov | 83.3 | 80.8 | 2.6
95 | Paul Thompson | 83.3 | 82.6 | 0.7
96 | Yvan Cournoyer | 83.3 | 77.1 | 6.2
97 | Daniel Sedin | 83.2 | 79.9 | 3.2
98 | Claude Giroux | 83.1 | 79.9 | 3.2
99 | Ted Kennedy | 83 | 78.8 | 4.2
100 | Jeremy Roenick | 83 | 81.2 | 1.8
101 | Henrik Zetterberg | 83 | 78 | 5
102 | Aurel Joliat | 83 | 82.6 | 0.4
103 | Patrik Elias | 83 | 78.9 | 4.1
104 | Dany Heatley | 82.8 | 81 | 1.8
105 | Joe Primeau | 82.8 | 74.8 | 8
106 | Michel Goulet | 82.6 | 79.3 | 3.3
107 | Pavol Demitra | 82.5 | 74.5 | 8
108 | Hooley Smith | 82.3 | 78 | 4.3
109 | Lynn Patrick | 81.9 | 79.4 | 2.5
110 | Bryan Hextall | 81.8 | 80.9 | 0.9
111 | Doug Weight | 81.4 | 78.3 | 3
112 | Bernie Nicholls | 81.3 | 80.6 | 0.7
113 | Jacques Lemaire | 81.2 | 77.9 | 3.3
114 | Brendan Shanahan | 81.2 | 79 | 2.2
115 | Bobby Bauer | 80.8 | 74.6 | 6.3
116 | Bernie Federko | 80.6 | 77.6 | 3
117 | Phil Goyette | 80.6 | 75.2 | 5.3
118 | Eric Staal | 80 | 78.8 | 1.1
119 | John Tavares | 79.9 | 76.8 | 3.1
120 | Alex Kovalev | 79.8 | 75.3 | 4.5
121 | Herbie Lewis | 79.5 | 75 | 4.5
122 | Brad Richards | 79.5 | 78 | 1.5
123 | Cooney Weiland | 79.3 | 78.9 | 0.4
124 | Marc Savard | 79.1 | 73.3 | 5.8
125 | Phil Watson | 78.8 | 76.7 | 2.1
126 | Bert Olmstead | 78.7 | 75.9 | 2.8
127 | Kent Nilsson | 78.5 | 71.3 | 7.2
128 | Jason Allison | 78.5 | 65.9 | 12.7
129 | Raymond Bourque | 78.3 | 75.5 | 2.9
130 | Vincent Lecavalier | 78.2 | 76.9 | 1.3
131 | Anze Kopitar | 78.2 | 76.9 | 1.3
132 | Cecil Dillon | 78.1 | 78.1 | 0
133 | Red Kelly | 78 | 75.4 | 2.6
134 | Denis Potvin | 77.9 | 74.9 | 3
135 | Alexei Yashin | 77.8 | 77.1 | 0.8
136 | Corey Perry | 77.8 | 75 | 2.8
137 | Bill Mosienko | 77.7 | 75.2 | 2.5
138 | Dave Taylor | 77.6 | 70.2 | 7.4
139 | Neil Colville | 77.2 | 72.1 | 5.1
140 | Rick Martin | 77.1 | 73.1 | 4
141 | Bobby Rousseau | 77 | 75.5 | 1.5
142 | Marian Gaborik | 77 | 69.9 | 7.1
143 | Bun Cook | 76.9 | 76.3 | 0.5
144 | Johnny Gottselig | 76.8 | 74.8 | 2
145 | Dave Keon | 76.6 | 74.3 | 2.3
146 | Jamie Benn | 76.6 | 72.7 | 3.9
147 | Alex Tanguay | 76.5 | 73.4 | 3.1
148 | Clint Smith | 76.3 | 75.1 | 1.3
149 | Pete Mahovlich | 76.3 | 73.8 | 2.5
150 | Peter Bondra | 76.2 | 72 | 4.2
151 | Lanny McDonald | 76.2 | 74.1 | 2
152 | Phil Kessel | 76.1 | 74.9 | 1.3
153 | Jonathan Toews | 76.1 | 72.3 | 3.8
154 | Rick Middleton | 76 | 74.1 | 1.9
155 | Milan Hejduk | 76 | 73.1 | 2.8
156 | Larry Aurie | 75.9 | 71.6 | 4.4
157 | Woody Dumart | 75.8 | 72.7 | 3.2
158 | Dit Clapper | 75.8 | 73.7 | 2
159 | Tod Sloan | 75.7 | 70.9 | 4.9
160 | Rene Robert | 75.7 | 71 | 4.7
161 | Mike Ribeiro | 75.7 | 74.1 | 1.6
162 | Vincent Damphousse | 75.6 | 74 | 1.6
163 | Don McKenney | 75.4 | 73.3 | 2.1
164 | Ray Whitney | 75.4 | 72.9 | 2.5
165 | Joe Nieuwendyk | 75.3 | 70.3 | 5
166 | Rick MacLeish | 75.1 | 73.3 | 1.8
167 | Bill Thoms | 75 | 72.7 | 2.3
168 | Lorne Carr | 74.9 | 74.4 | 0.6
169 | Charlie Simmer | 74.9 | 65.2 | 9.7
170 | Brian Leetch | 74.4 | 73.7 | 0.7
171 | Zach Parise | 74.4 | 70.9 | 3.5
172 | Alex Zhamnov | 74.3 | 65.7 | 8.6
173 | Al MacInnis | 74.3 | 70.5 | 3.8
174 | Patrick Marleau | 74.2 | 73.2 | 1
175 | Eddie Wiseman | 74.1 | 71.8 | 2.2
176 | Glenn Anderson | 73.9 | 72 | 1.9
177 | Robert Lang | 73.8 | 67.8 | 6
178 | Billy Taylor | 73.7 | 65.5 | 8.2
179 | Dino Ciccarelli | 73.7 | 69.8 | 3.8
180 | Todd Bertuzzi | 73.6 | 68.5 | 5.1
181 | Paul Ronty | 73.5 | 67.8 | 5.8
182 | Rod Brind'Amour | 73.4 | 72.6 | 0.8
183 | Kevin Stevens | 73.4 | 67 | 6.5
184 | Dennis Maruk | 73.4 | 71.3 | 2.1
185 | Tony Amonte | 73.3 | 73 | 0.3
186 | Taylor Hall | 73.3 | 57.3 | 16
187 | Craig Janney | 73.3 | 67.4 | 5.9
188 | Pierre Larouche | 73.3 | 66.6 | 6.7
189 | Rick Nash | 73.2 | 69.2 | 4
190 | Owen Nolan | 73.1 | 66.6 | 6.6
191 | Cam Neely | 73 | 63.4 | 9.6
192 | Camille Henry | 73 | 67 | 6
193 | Joe Mullen | 72.9 | 71.6 | 1.3
194 | Pit Martin | 72.8 | 70.6 | 2.2
195 | Kenny Wharram | 72.6 | 69.8 | 2.8
196 | Tim Kerr | 72.6 | 61.7 | 10.9
197 | Steve Sullivan | 72.6 | 67.6 | 5
198 | Joe Pavelski | 72.6 | 71.1 | 1.5
199 | Ace Bailey | 72.5 | 66.6 | 5.9
200 | Alexander Semin | 72.4 | 64.1 | 8.3
201 | Steve Shutt | 72.4 | 70.6 | 1.8
202 | Thomas Vanek | 72.4 | 68.7 | 3.7
203 | Martin Straka | 72.3 | 67.4 | 4.9
204 | Gaye Stewart | 72.2 | 69.8 | 2.4
205 | Buddy O'Connor | 72 | 65.9 | 6.2
206 | Red Berenson | 72 | 67.5 | 4.5
207 | Steve Larmer | 71.9 | 71.9 | 0
208 | Johnny Gagnon | 71.7 | 70.4 | 1.3
209 | Bobby Smith | 71.7 | 68.9 | 2.8
210 | Ed Litzenberger | 71.7 | 67.5 | 4.2
211 | Brian Propp | 71.6 | 67.2 | 4.4
212 | Bill Barber | 71.5 | 70 | 1.5
213 | Brad Park | 71.4 | 63.3 | 8.2
214 | Petr Nedved | 71.4 | 65.9 | 5.6
215 | Syl Apps | 71.2 | 69.1 | 2.2
216 | Johnny Peirson | 71.2 | 64.1 | 7.1
217 | Tomas Sandstrom | 71.2 | 62.5 | 8.7
218 | Gary Roberts | 71.1 | 60.6 | 10.5
219 | Dave Andreychuk | 71 | 69.5 | 1.5
220 | Nicklas Lidstrom | 71 | 69.4 | 1.6
221 | Glen Murray | 70.8 | 65.5 | 5.2
222 | Wayne Cashman | 70.7 | 67.8 | 2.9
223 | Walt Tkaczuk | 70.6 | 67.8 | 2.9
224 | Jozef Stumpel | 70.6 | 62.7 | 7.8
225 | Baldy Northcott | 70.6 | 68.6 | 2
226 | Ebbie Goodfellow | 70.5 | 69.6 | 1
227 | Butch Goring | 70.4 | 67.8 | 2.7
228 | John McKenzie | 70.3 | 65 | 5.3
229 | Jimmy Ward | 70.3 | 68.5 | 1.9
230 | Fred Stanfield | 70.3 | 67.8 | 2.4
231 | Mike Gartner | 70.2 | 68.8 | 1.4
232 | Daniel Briere | 70.2 | 61.7 | 8.5
233 | Patrick Sharp | 70.2 | 66.2 | 4
234 | Saku Koivu | 70.1 | 60.4 | 9.7
235 | Scott Gomez | 70 | 67.6 | 2.4
236 | Garry Unger | 70 | 70.1 | -0.1
237 | Herb Cain | 70 | 67.1 | 2.8
238 | Bronco Horvath | 69.9 | 57.3 | 12.6
239 | Erik Karlsson | 69.8 | 61.2 | 8.7
240 | Paul Stastny | 69.8 | 63.4 | 6.4
241 | Jim Pappin | 69.7 | 63.4 | 6.4
242 | Art Chapman | 69.6 | 65.2 | 4.4
243 | Neal Broten | 69.6 | 64.5 | 5
244 | Barry Pederson | 69.6 | 64.7 | 4.9
245 | Martin Havlat | 69.5 | 60.4 | 9.1
246 | Shane Doan | 69.4 | 66.1 | 3.3
247 | Paul Haynes | 69.3 | 60.2 | 9.1
248 | Sid Smith | 69.3 | 68.2 | 1.1
249 | Dennis Hull | 69.2 | 68.3 | 0.9
250 | Mickey Redmond | 69.2 | 56.7 | 12.5
Example - in 1996, Eric Lindros achieved a VsX of 95.8 in 73 games. Let's give him credit for 60 * the 9 games he didn`t play / 82 = 9.0 more "points". So he ends up with 102.4.
There were 183 players with an "old" VsX of 70 or higher. The players with the biggest changes were Lindros (+10.6), Geoffrion (+9.0), Lemieux (+8.5), Forsberg (+8.2), Demitra (+8.0), Primeau (+8.0), Taylor (+7.4), Apps (+7.2), Malkin (+7.2) and Nilsson (+7.2).
Only one player dropped - Gary Unger. Thanks to a trade he played 549 out of a possible 548 games during his seven best VsX years, and that extra game gets clawed back here.
Data is from 1927 to 2016. All seasons are normalized to 82 games.
I put this together in about 20 minutes. I don't see any obvious errors but let me know if anything looks funny.