This is the first pregnancy for me, so I don't know if I have a working intuition about this yet. But in the first few weeks of knowing we were expecting, I was pretty sure we will be having a boy! I think it's because, even though we weren't trying that month, we did have sex the day before and the day that I'm assuming I ovulated. So I guess we'll see if that theory about boy-making sperm and girl-making sperm holds true for us!
We don't have a huge preference either way, and don't plan to find out before the birth. Some days I catch myself thinking about what it would be like to have one versus the other, and I notice that my 'preference' is changing every couple of days. DH and I talk about it every few days or so, and I know he would love to have a girl first, and I'd be pretty happy with that too. But we have a ton of friends with little boys, and some days it's really easy to imagine our son running around with them in a couple years! In the end though, I don't want to allow myself to get my hopes up for either sex because I don't want to feel any disappointment when the baby is born. And since we're hoping to have four kids, I figure we'll get a chance to have at least one of each, so it doesn't matter which one comes first.