I'm not sure if it's useful to your situation, but I'm liking the Deans 3-pin connectors. They're compact, versatile, and reasonably cheap.
Keep in mind, though, that my hottest plane so far only draws 10 amps. If I go over that, I'm going to have to go to something that will handle more power.
If space is no object, have you considered the power-pole type connectors? With them, male/female is no issue at all.
Hope that's useful,