(Almost) anything Ben & Jerry's. I feel sorry for you if you've never heard of it or tried it. I like Pistachio, Cherry Garcia, Caramel Sutra, and Chocolate Brownie Cheesecake the best out of their flavors but almost all of their flavors are good.
There was this type of ice cream at my local parlor where I used to live-- it was just rocky road with little chocolate raspberry cups in it. It was awesome. They called it Rocky Roadrunner, I don't really know what it's called universally...
I always liked this peppermint candy ice cream that was pink and from Safeway I think. They don't have it very often though, I think it may be seasonal.