Given the choice, women would choose hair over bald every day of the week; that's what my experiences have taught me. In your mind, adjust both photos so that they match in age and clothing, and you'll see that it's very close. Then I'd favor the first guy. Now, make the first guy slightly slimmer, give him a beard and a more trendy haircut and it's a no brainer.
I'm not a candidate because I'm a full on NW6 and my donor density seems to be below average. The only thing that I'm a candidate for...is a disappointing life spent alone with no wife or children. It's so hopeless.