Favourite would be The Sisko, Picard or Kirk. I uh.. just can't pick right now. I've been watching a lot of each show recently and these 3 are all amazing captains to watch. I usually list Sisko as my favourite, though I'd admit Picard is the definitive
Star Trek captain and the ones all should be measured by.
Favorite: mirror universe Hoshi Sato.
Love that 2-parter.