Resistance is one of my favourite games of this type. It's great when you have 2 or 3 really talky people. Kind of falls apart when everyone is quiet though.

Sometimes you have to rally the group to play a second game and then they'll get it.

I've also seen quiet groups completely come around if you act a little more like a moderator and start asking questions. Have everyone say who they are and why. Always ask people why they voted a certain way. Its usually not too hard to get the quiet ones talking.

Yep, I'm a fan of Resistance and Avalon as well. I think I prefer Werewolf and One Night Werewolf more.