Realistically, Kanter if any of them. Hayward is a good player, but doesn't do All-Star things, like score a lot. He does a lot of little things. Either way, he's not playing at an All-Star level, and I'm not sure he'll ever reach it.
Kanter is going to be one of the few identifiable 20/10 centers in the West with a complete inside-outside game. Coaches could vote him in within a few years.
Burks has enough talent, but he'd have to beat out a bunch of guards, and it's tough.
Favors could eventually get selected, but he's still too raw right now. Still, if Joakim Noah and Tyson Chandler can get in, then maybe Favors can too at some point.