Although there are two odd flavors that I had once and was never able to find again that were amazing:
Ben & Jerry's had a Caramel Apple Crisp flavor that was divine.
Baskin Robbins once had a Tea of Tranquility flavor that was Chai Tea flavored ice cream with ginger snap cookies mixed in. I think it actually was the meaning of life.
Now - if I have to have ice cream, I just buy the little Skinny Cow single serve containers.