What about you? I'd assume it'd be Pangoro? XD
Pangoro is absolutely awesome, but he actually comes to a close second behind my true favourite: Scyther. Guy is a beast, been in love with him ever since I found one in the Safari Zone in Pokemon Red. They're both really cool Pokemon, though!
Larvitar is great, but it's curious you didn't say Tyranitar -- everyone I know who likes that evolution line thinks he's sick!