As are the Ellis and Lemire runs. The Brian Wood run is better than most anything in modern Marvel, too.
Edit: reading Lemire's run a day or two after a decent psychedelic or dissociative experience will have you questioning your own sanity in a super fun and slightly terrifying way.
Edit 2: man, everything Warren Ellis touched was absolutely fantastic for a long while. It's a shame he wound up having more than slightly problematic relationships with fans...