Prime owning Bonecrusher so bad was the best bit of the movie for me. Prime doesn't need to TRY to kill decepticons... He is vastly superior and skilled. Its just that movie Megatron is so much bigger and more powerful that Prime has such a hard time with him.
Its like the cartoon movie, Prime takes out what, every decepticon inone drive by and one front-flip, THEN has the real fight with Megs.