Hard to call. Goku has the destructive power to kill Schneider, but if he transforms into his stronger stuff Goku doesn't really have the durability to handle all the punishment, nor do I see him dealing the killing blow faster in any situation. He can easily match Schneider's output, but can't take as much. Then there's the question of speed. In the anime, Goku was moving unimaginably fast in Kaioken x10 SSB, and Scheider was trading an infinite amout of blows every moment, so it's hard to say who's faster. Overall I'd say Goku would win if Schneider didn't use all his buff stuff and go Majin and such, though if he did he'd kill Goku faster than Goku could kill him. Beerus wins though, do doubt.