Magic Hat Batch 375, Thumbsucker and Feast of Fools (7.5% edition) are some of my favorites. Batch 376 was really nice also. A black lager was a brilliant idea!
Sam Adams on the other hand, watered down macro. They have there place but it isn't top of the heap.
Hmm never looked into Magic Hat 375, I usually go for Sam Seasonals but I am just getting into fuller beers now. I am going to keep an eye out for it.