This one is pretty tough to call. I went with Lemieux's team, but it's a good poll, as I don't think you could really go wrong either way.
I think the Gretzky team works better together from an offensive chemistry standpoint, as all three are great passers (yes, Lindros was a fantastic passer). However, I also like the more defined roles of team Lemieux. Lemieux is quarterback. Try to use McDavid's game-breaking speed to force mistakes out of the opposition. Ovechkin is more than a "load the cannon" for the one timer kind of guy - when he was younger, he could go out and get a goal on his own like no other (still has the most beautiful goal of all time).