Out of all 3 fighters burns is the most talented, along with his opponent not having a true test yet it would be the most intelligent bet. khamzat could roll through burns but the payout is huge betting on a guy that is extremely solid and could pull the "upset" off.
we saw what sterling had to offer, and hes coming off of surgery and ring rust from a guy that dominated him. I don't see sterling doing anything different in this fight.
Zombie is good but no more than a journeyman, and not gonna beat a guy undefeated in the ufc.