The Sisko. Because. 
Seriously though, that man deserves respect for what he did. Boldly staying there, trying his best to help a people ravaged by occupation and helping them become a member of the Federation, while at the same time trying to raise a son, command a huge station, being on the frontline of the Dominion War and trying to come to terms with his role as a messiah.
He also seems the one captain most interested in the wellbeing of his crew for their sake, instead of the ships sake or the mission's sake. Even going so far as to get to know them, he invites people to dinner in his quarters.

Seriously though, that man deserves respect for what he did. Boldly staying there, trying his best to help a people ravaged by occupation and helping them become a member of the Federation, while at the same time trying to raise a son, command a huge station, being on the frontline of the Dominion War and trying to come to terms with his role as a messiah.
He also seems the one captain most interested in the wellbeing of his crew for their sake, instead of the ships sake or the mission's sake. Even going so far as to get to know them, he invites people to dinner in his quarters.