LBJ with the way his strength, size and agility are, he would still be a dominant player in any era imo. People gotta understand that players would adjust to the rules and style of play in different eras, wouldn't complain as much, flop almost at all, would be even more physical, etc b/c they'll play to their best advantage and skill.
I know a lot of us love to troll, talk about certain players, say certain players this or that b/c that would get people mad from the comment. He is one of the players that I believe can play in any era. Shaq, Duncan, Kobe, Payton, Tmac, V Carter, Lebron, Wade, Ginobili, etc could all play in any era imho.