The first time I saw him on my trading cards ( Iforgot what series that was but the first card numbered 1 was Spiderman), I already like him. The outfit is cool and I know he has a great personality though i don't know him.
I know he's not a mutant. His story is also a bit puzzling especially when it comes to his costume.
Darkhawk is one of my primary group of favorite characters in Marvel Comics, aside from Storm, Apocalypse and Penance.