Much as I would like to choose Captain Mal Reynolds again I'm sure that this question is asking me stick to the Star Trek universe. And it has to be Kirk. Or should I say: KIRKKKKK!!!!
He's the man with a plan, he's the one I would pick to get me out of trouble (if I can't get the Doctor that is). Whether he's played by the Shat, or by the new swaggering Chris Pine, he is the business.