It's the almost ultimate match what do you I say it would a tie between Roxas and Sora.I mean think about it Luffie would use Gum Gum Rocket Sora would avoid and knock Luffie into the water.Roxas would block Auron's attack with his first keyblade the and attack him with the second then freeze him wile he's above water.And Sora and Roxas would tie because they're the same person and would counter the other's move.