Kirk - too much if a cowboy, would probably get me killed
Picard - too much of an old granny, and that also has its dangers, sometimes you gotta roll the hard six
Sisko - an ass kicker when he needs to be, but also capable of taking a wait and see or even sneaky and underhanded approach
Janeway - too bipolar, which Janeway is she today?
Archer - how did he even get to be a captain?!?
NuKirk - still under development as a character, ask me again next summer