Mario 87-88 to 92-93
Orr 69-70 to 74-75
technically - that's 6 seasons each. Probably remove the first from each set.
Mario 87-93: 666 points
Orr 70-75: 614 points
Gretzky from 81-86: 1036 points
All Gretzky needs is a guy who puts up 49 points per year to beat out the other duo offensively. Gretzky can make pretty much anyone put up those numbers.. and they have Hasek in goal.
I picked Gretzky and Hasek because of th 5yr stretch thing. If it was their 5 best years, then I'd take Mario/Orr
Lots of replies didn't read the OP in here. Lemieux is the clear weak link in a sample of 5 year cut outs.
You're both right that Mario is the weak link in terms of health. He doesn't have 5 consecutive full seasons at a high level.
BUT - it also depends how you look at it. What's your goal here? To have the best regular seasons ever, and potentially break single-season records? I assume the goal is more in relation to the cup. And for Lemieux - if you go 89 to 93 stretch of 5 seasons - it's true that you won't get 5 full seasons from him, absolutely. But he played in every playoffs - and despite probably not being at 100% health-wise for most of those playoffs, he still managed 2 of the best playoff performances of all-time (and i say that in a thread that includes Gretzky and Orr). In 1989 playoffs - lack of team success, but 12 goals in 11 games is stupid good. 1990 they didn't qualify - 1993 he likely suffered a bit more from health.
All that to say - if your goal is to win the cup - you may not get Mario 100% healthy for all the regular season games in all 5 seasons - but if you do enough to make the playoffs and if he can play in top shape in the playoffs - is peak Lemieux/Orr better than Hasek/Gretzky?
Come the playoffs - would you rather have the duo of Lemieux/Orr generating office, or Gretzky and that guy he plays with who can score 49 points in a season?