We can't even talk about it without arguing! 
With ds we could not agree on a Boys name but had a definite girls name! We then agreed on a Boys name we both kinda liked and dh 'let me' have the second name after he saw how bad Labour was.
Now with dc2, we have the same girls name but today dh said he doesn't like it now, asked what our back up was and said he prefers that (I like them both). Now he says cos I 'picked' the girls name, he should be allowed pick Boys name! His choice is a name I don't mind. I was gonna let him have it if we could not agree on something better. I didn't tell him that though cos then he wouldn't try and come up with anything better.
He's just pissed me off though by going into a strop and trying to insist we use the name he wants! Now I'm tempted to veto it altogether which I know is childish.
Grrrr... Sorry, just needed to rant! 
So how did you agree?