Of those 10 teams, I'd say San Fran. Like it was already stated, they have a great 1-2 punch with Lincecum/Cain and if Zito can get it back together they could be pretty good. Sanchez isn't bad either. Plus, they've got some pretty good young position players.
I know the Rangers weren't included but I would definitely pick them if they were. They have a TON of young prospects and guys like Chris Davis have already splashed onto the scene. If they can sign a decent pitcher or two, look out.