Looks: taller the better, 6' or more, very short head hair, preferably skinhead short, number 2 cut is ideal, dark hair, no blondes or ginger guys. I know this comes from growing up around skinheads, it was very common to see that look. No facial hair apart from stubble before shaving needs doing. Tattoos a bonus, but not vital.
Character: the kind of man who can be as fierce as me and bloody mean it. Not as aggression, but that protectiveness when you know they could very well put someone (or thing, could be an animal) down who is a threat and they won't get up quickly. Honesty - absolutely essential, I've forgiven things I didn't approve of (bingeing stuff) because of absolute honesty. Keep a secret, unless it's for a surprise nice thing, and you're dead to me.
Really surprised about the forearms thing, never occurred to me!