I dunno man... you can kill people in some fun ways in Postal II. I prefer urinating in their mouth until they start to vomit, then I blow them away. Alternatively, you can pour gasoline on them and toss a match. Not the best game out there, but fun for fun's sake.
LOL - One of my guilty pleasures as well. My favorite was walking into a crowded room, pouring gas all over the place, and throwing a match. Once everyone freaks out, and runs around on fire, then I piss all over them. "I'm helping I'm helping I'm helping I'm helping!" Although, beating up old ladies with a baseball bat in GTA is fun, too.