Boba is definitely better, GG can't even use the force, besides, he specializes in killing Jedi. Boba Fett is NOT a jedi. He's a friggin' killing machine. Boba would fry GG with his flamethrower or blow...
I agree, the only reason maul didn't use any force in the first place is because GL wants to make the movie interesting.
What fun would it be if maul just pushed him off the clift?