Which Shifters Are Your Favorite?

My favorite Paranormal Romance Books are the ones with shifters. I love me some alpha males. I love the growling, the biting, the claiming, the rough aggression. Give me more of it. Yes yes yes.
For me, I love the wolf shifters the best. Suzanne Wright's Phoenix Pack Series and her Mercury Pack Series top my list. JD Tyler's Alpha Pack Series comes next. If I had to pick a species after that I guess it would be... hmmm... that's hard. Panthers. Only because in JD Tyler's books she had a panther, and his book was awesome. Bears are cool, but panthers are silky and sexy.
What about you? What are your favorite shifters? And who wrote them?