Richie Aprile was a good enemy, especially since the first thing he did when he was introduced to the show was beat the crap out of that pizza guy and then later paralyze him by running into him with the car.

To me, Ralphie so far is a nuisance rather than an enemy. Plus, Joe Pantoliano really doesn't seem thuggish enough to be a mafia guy. It's probably because I've seen him in a lot of other things like The Fugitive, Memento, the Matrix, and even La Bamba.

I found Livia annoying but I never really thought of her as an enemy either, even though she tried to have Tony whacked.