I don't really care about muscles that much but if I must choose, I want a guy to be toned all over. It's useless if a guy has great abs but no power in his legs or arms whatsoever. The most horrible thing is big arms but skinny legs lol and I see that a lot.
A guy should work on everything, I mean, why not work on everything if you started working out anyway? There should be balance.
And if he starts to work out, it's nice if he can press more than me, but that has never happened before, unfortunately.
Lol, I never really thought about it before, but for me, I guess it'd be the shoulders. You need the rest to balance it out, like arms and stuff. Please DON'T put on muscle though, if you already have some. I don't care WHAT wrestling mags, or any other things say, 9/10 girls, if not more, think that a load of muscle is grotesque; it's just that most of those in the 1/10 category are more verbal about it.
try reading the girl magazines that pretty much brainwash them on what the ideal man should look like...usually it's the whole package, arms, chest, abs, and so forth...btw, arms may be exposed but, the pecs and abs underneath kind of lets a girl's mind wonder and think more.