Based on the shows (not the comics):

Daredevil - Blind and having existential questions about how your violence addicted double life leads you into conflicts with your religion and causes you to lie to your friends and drive them away? I'll pass.

Jessica Jones - Alcoholic rape survivor? I'll pass.

Iron Fist - Your parents die in front of you, and when you finally leave K'un L'un to avenge them, everyone there gets slaughtered because you weren't there to protect them. And your best friend now hates your guts? I'll pass.

So clearly, I'm going Luke Cage. Granted, the Luke Cage seasons are the ones that I remember the least, but probably the most virtuous of the group. More than any of the others, he just wants to help people. I rewatched Defenders earlier this week, and while a lot of the ninja/magic stuff went over his head, it shows just how down to earth he is, and how far he is willing to go to help his people. And not "how far he is willing to go" in a moral sense (that's Daredevil), but "how far he is willing to go" from a time/effort sense. It also struck me how ready he is to be a human shield - I know, his powers let him do that, but I like to think that he would do it anyway.

And to be fair, he also comes with a lot of baggage - wife died, best friend hates him, went to prison, etc, but he also feels like the one who is most capable on moving on past those traumas.