Yeah I switched to female because I heard that a lot of people preferred the female VA. I don't think one's better than the other, but I think the guy overall sounds a little more sarcastic. To me it's not a great big difference. I think from switching back and forth I actually kind of like each VA more or less for different relationships with other characters.
Massive props to Insomniac for allowing you to make customizations at any stage in the game. I don't like worrying myself over if I've made my character the exact right way when I should just be getting into the swing of things.
Switching to female was the best decision I did. The game became a lot more enjoyable.