Oladipo and Burke are probably the early frontrunners, because they are going to get the most burn right out of the gates and they'll both have the ball in their hands a lot.
I think Bennett has a pretty good shot too, though. He isn't going to start right away and he may not start all season, but his offensive game is so good, he's going to put up numbers. The way I understand it, one of the main reasons Grant chose him was because of his ability to run the pick-and-roll/pop with Kyrie and Dion.
He's going to be the beneficiary of a lot of open looks/rolls playing with arguably the best young PG/SG tandem in the league.