Gretzky being uncatchable wasn't entirely speed based. He was quick, but he was often referred to as "slippery" by opponents. They thought they had him lined up, went for a hit, and all of a sudden he wasn't there. It wasn't just the slugs of the 80's who couldn't catch him, it was guys all through the 90's as well, even when he was old and had slowed down, you rarely saw Wayne take a big hit. Yes, today's game is faster, but that doesn't mean that he would all of a sudden be unable to sidestep guys or slip around hits. If anything, he would be better today, there is no clutch and grab today, and guys are getting called for things on star players that they didn't used to get called for. Plus, special teams is more important than ever, and Gretzky is the best powerplay quarterback ever. Teams were afraid to get penalties against him because they scored so often.