My favorite has always been Dr. Strange.
Before I got into comics I was reading some here and there, mainly independents like JTHM and Milk and Cheese when I was 16-17. My comics guy at the flea market got in almost a full run of The Defenders that he was selling for $.25 each. I scooped up all that he had, and from those stories I started liking Dr. Strange. From there, I started collecting the BA Strange run and then the SA. Now I'm working on completing his Strange Tales run. His character has always been very different than any other that I've read.