I'd be okay with adopting. However, I would probably try a biological kid first, because I'm interested in how all those evolutionary parenting instincts would kick in, as I hear they are supposed to with your own genetic offspring.

I am sure that, given the responsibility of being a parent to an adopted child, I would care for them and love them with fierce and unstoppable devotion. I've got an adopted sister and she's my sister, no question. My partner's got a kid, and though I'm not really a father figure to them at this point in the relationship, I would burn the world down before seeing them hurt.

So in summary, as a man, adopting seems to be just as good as bio.