I'm not sure what mine is. As far as guns I've owned or own, I love the SKS I used to have. Accurate, it didn't kick, and it looked darn cool. I love my bolt action .410- it used to be my great great grabdfather's, and it has been used by each of my fathers since then. Lots of sentimental value, but it's sick accurate, even at longer ranges.
For guns I'd like to own, I'm partial to the H&K variety. PSG-1 (with silencer), MP5, G36K...I wouldn't turn down any of them
EDIT: Something I'd like to build for home defense though, a machine gun that fires .22 rounds. It would have removable, rotating barrels. The reason for this is even though a .22 isn't much of a bullet, put a short burst of those in the air, no one is getting by. Also, you can buy a ton of .22 rounds for next to nothing. One day I'll build it
