I suppose I'll be the first to take a crack at this... And I'll also be the first to admit that I DEFINITELY read that as "Gene Snitski" and was confused upon entering the thread and seeing Kiniski's picture staring back at me.
So what is there to say about Gene Kiniski? Well, if you're like most and have no real grasp of pro wrestling before 1885, probably a lot (I'm not bashing anybody, just to be clear. We can't expect everyone to know who Gene Kiniski is...). He may very well be the greatest Canadian pro wrestler of all time. You don't hear his name in the numerous Bret Hart, Chris Jericho, Edge debates, but Kiniski helped pioneer the industry before most of those guys were born! Like many during that age he would travel from promotion to promotion, wrestling the who's who of talent in that era. Win a championship, lost a championship, move on to the next scene. He won (according to Wiki) 26 tag team championships alongside multiple Von Erich's and even Killer Kowalski!
Now, regardless of how it looks, I'm not really all that pro-Kiniski. I just wanted to get some stats out there and support him, since the majority of readers won't know anything about him or his lengthy career. His opponent is Rob Van Dam, a man that helped pioneer a hardcore industry (that I never really cared about...), but can also hold his own in a straight-up wrestling match. His accomplishments are nothing to scoff at either, gaining major gold in every promotion he's been a part of. RVD is a huge fan favorite of a lot of wrestling fans, and while I never cared about ECW and didn't pay attention to RVD until his last run in WWE, I can still respect his career.
The question of who wins isn't really a simple one. RVD is strong as hell, and has a decent amount of stamina. But take away all hardcore gimmicks and I'm not sure he could compete on Kiniski's level. He's good, but Gene was "Canada's Greatest Athlete" for a reason! I'm sure many will disagree with me, and for very good reason indeed, but I have to cast my vote for Gene Kiniski in the first round.