Munchkin
Of the two games played today, Munchkin was much more entertaining for me. There's a nice blend of turn based activity (each player taking turns drawing door cards), but also curses that can be used at any point. I like the comedic text on the cards, but either someone has to read it out each time (which I hate) or everyone crowds in close to read it; neither are ideal.
Small World basically embodies everything I don't enjoy in boardgames. The rules were a bit complex, and while the mechanic of mixing races and classes's variation ensures that no two games would quite be alike, after playing 3/4 of a game, I feel like I would have to play it through another four or five times before I could really begin to really get a feel for the strategy. Setting the game up took forever, which is usually the point where I get annoyed and stop caring about the game.