Wiggins had some pretty spectacular attempts but failed to execute on most of them. He tried one dunk where he moved the ball from his left to his right hand behind his knees all while in midair. The fact he could even attempt some of those dunks is crazy. Not to mention the fact when he did miss a dunk it took him no time to reset and try it again. The guy's athleticism is unbelievable.
Walker won because he hit most of his dunks (which were pretty awesome) on the first try.