I dunno if I can say shooting handguns is more fun than shotguns or rifles; I haven't had enough experience with them.
I've shot an M4A1, an AK47, a Desert Eagle, some sort of revolver, (Probably smaller than a .357, I don't remember) 4-10 (The only gun I actually own), and various other ones I can't remember.
--
http://backloggery.com/shados
http://last.fm/user/ShadosNeko