Bill Russell? I am not sure, I don't think he was getting a lot of post touches when the Celtics needed buckets. Anyone who was alive at the time know any better?
Wilt was a guy who was considered a choker; wasn't there a whole thing about how he didn't go back into a finals game when he was with the Lakers?
Jordan was definitely considered a choker before he started winning titles. Not necessarily in the same sense that some people consider Lebron right now, though. I think Magic got some of the choker label after the C's won the 84 title. Kobe is a guy who pretty much quit on his team in Game 7 of the playoff series against Phoenix.
Lebron isn't there yet, don't get me wrong. But if he wins multiple titles, all this talk will go away. My point is that the further away you get from your career, the narrative can change.
But hey, if Lebron is to be considered one of the 5 best players of all time or wh atever, he has to win multiple titles. Period. This isn't baseball, where you can be a great player but you don't control that much of the game. This is the sport where one individual player can play the biggest role in the success of a team.