Sundin is not comparable to Duff and Gilles. He is more comparable to:
Robitaille - he may have a bunch of All-star selections at LW but when was he a top 10 or top 20 player in the NHL? No more than Sundin was.
Gartner - Sundin was a better player.... plain and simple as that. Gartner was likely never a top 20 player EVER in the NHL. Yet he was considered a mortal lock for the Hall of Fame.
Perreault - The best player on his team most of his career. Second team All-star twice. Quite comparable career to Sundin if a bit better. Finished 3rd, 5th and 8th, 5th in scoring. Top 10 4 times.
Alex Delvecchio. Never the best player on his team. Second team All-Star twice. Long career. A good player but how often was he a top 10 forward in the original 6? Not often. Sundin has had a better career.
Mike Modano - Aside from his Cup win I think Sundin has had a better career.
Michel Goulet - I think Sundin has had a better career
Bernie Federko - Sundin I think has had a better career
Darryl Sittler - Pretty Comparable to Sundin
I'm not comparing Sundin to Gillies and Duff, he's clearly better. I'm saying the fact that he's better shouldn't automatically get him in.
What's your point with all those names you brought up? They're basically all border-line HOFers, just like I'm saying Sundin is.
Robitaille:
8 consecutive 40-goal seasons. A lot of people seem to forget just how good of a goal scorer he was, and he was an able playmaker as well. Also a reasonably good playoff record (cleary better than Sundin's), even if his teams didn't often go far. He's the all-time leader in career goals and points, as well as single-season goals and points for a left winger (yes, I know it's a historically weak position). I'd say Robitaille should clearly get in before Sundin.
Gartner: Probably a pretty good comparison to Sundin, probably the two most consistent players ever. Always good, never dominant. Even still, Gartner put up nine 40-goal seasons, and an absurd
sixteen 30-goal campaigns. Sundin would still need five more to match that, though I'll give him credit for playing in a lower scoring era. Gartner retired as the NHL's fifth-highest all-time goal-scorer, you simply can't ignore that. And as questionable is his playoff resume is, it's still at least as good as Sundin's.
Perreault: One of the games all-time great playmakers. I believe he was about fifth in all-time assists when he retired. Perreault is probably a lot closer to Sundin than most of Mats' detractors would care to ackowledge, but he still comes out on top. He has nearly twice as many playoff assists as Sundin in nearly the same number of games, and though he didn't ever win the Cup, those Buffalo teams of the 70's are considered one of the best to never win.
Delvecchio: A fair comparison, but Delvecchio was second only to Howe in all-time points when he retired, and put up nearly 1300 of them in an era where 700 could get you into the Hall. Also a key player on a couple of Cup-winning teams.
Modano: The playoffs are the key. Modano's playoff resume dwarfs Sundin's. And Modano was, IMO, arguably the best two-way center in the game for several years. A HOFer in my books for sure.
Goulet: I'll give you Goulet, there's not a lot that separates him from Sundin. Goulet did string together consecutive seasons of 42-57-56-55-53-49-48 goals however. His peak was likely a little better than Sundin's.
Federko: Not much argument here, but Federko did once tie for the playoff scoring lead in a year that his team didn't even reach the finals.
Sittler: Indeed, very comparable to Sundin. Their careers as Leaf greats follow a very similar pattern.