This one, of course!
She was a beautiful woman, and I don't want to say too much, because I wouldn't want Ms. Carter to feel bad if she ever happened to read this. But I lost my lust factor for her when she started running in that suit, and it's not what you think. The girl who played Isis, yes, it was a kid's show, but she was hot.
Anyway.....
Non-real-life fantastical character: Barry Allen aka the Flash. Good-hearted, well-meaning guy, and let's face it, if you can go that fast, and heal that fast, you can do anything.
Slightly less fantastical character: Spock. Yes, the geek dream. I'm all over it. Insanely smart, level-headed, stronger than humans, long-lived, able to compartmentalize pain.
Relatable human: I'd like to say Leonard Hofstadter (BBT) because he's got that Penny thing going on, but it's not enough. There's too much other baggage. Let's go with Eliot Spencer (Leverage). About as badass as you get, but still shows sensivity and canniness.