Gaudreau is roughly 5lbs lighter than Gretz AND 3" shorter. Ennis is 3" shorter, but has 15lbs on Gretz. Marner and Kane are the almost the same height as Gretz but have 15-20 lbs on him. Pound per Inch... Gretzky was much more slight than those 4 guys. Surely there's other guys in the league you can pull up that are around Gretzky's frame, to refute my claim, no? I mean there's literally 600+ players in the league (now).
That's not even addressing actual conditioning. Or do you guys think that Gretzky could press and lift the same as those guys, too?

Come to think of it, I don't know if I ever seen a photo of Gretz any where near exercise equipment. I'm sure he worked out at least, yeah? Jumpin' jacks and stationary bike, maybe? Anybody got anything?
You have to know that half of my opinion has be formed by a lot of what Gretzky has said himself, about how he would measure up to today's game. I'm not just hatin-on-Wayne here. I don't need to hate on Wayne.
Gaudreau's the guy that took 20 whacks in the wrists and was out for 6 weeks, right?
Marner's missed just about as many games to injury in his rookie year as Gretzky did in his first 8 years. That's weird, right?
Kaner's an exceptional player, for sure. Much beefier than Gretz, though. Ennis is waaayyy more solid than Gretz.
Edit: I don't think Gretzky would have to play physical. I posed the question of if others were going to play him as physical as they do Sid (and McD, etc).