All from DBZ.
Funny:
Cell: How did you get so strong?
Vegeta: I did a lot of push-ups and sit-ups. And I drink plenty of juice!
Another Funny:
Freeza: Why can't I hit you? Tell me!
Goku: You didn't say please.
Freeza: All right then, PLEASE! *blasts him, but misses*
Just plain Awesome:
Goku: You can destroy planets, but you can never destroy what I am, friend.
Freeza: You- what- what are you?!
Goku: I am the hope of the universe. I am the answer to all living things that cry out for peace. I am protector of the innocent, I am the light in the darkness, I am Truth. *volcano erupts sky-high behind him* ALLY TO GOOD, NIGHTMARE TO YOU!