This here's a solid collection of Doctor Strange, with most of the artwork by the distinctive Gene Colon. I'd forgotten Colon's run on this title and looking at it again, I'd have to say I rather prefer Colon's work to most of Ditko's. Steve Ditko laid a great foundation, that few have been able to follow up on. Most Dr. Strange books have fallen flat without the Ditko touch. Not here. Colon and Thomas do real nice work.
Also, if you're a Doctor Strange fan look for Doctor Strange: The Oath (New Avengers). The Oath is just about the best Dr. Strange collection ever.