Obama.
Economic policy: Not perfect, but at least it's more concise than Romney's. With the addition of Paul Ryan, Romney's economic plan started to form in a Reagan-esque manner, something that even former Reagan adivsor(s) feel will not work in the present day - our interest rates are too low.
Women's rights: Romney and his "binders full of women" among other comments, policy on abortion, etc, just don't sit well with me. You can compare Obama and Romney's general comments about women and even their relationship to their wives and see the difference.
Birth Control, Abortion: pro-choice is NOT about forcing teens, rape victims, etc. to get abortions. It's giving them the CHOICE. And I think women should be able to decide what happens with their bodies.
Same-sex Marriage: See above. I can go on and on about this if you want to argue with me elsewhere, but same-sex marriage is a choice, not a requirement. Marriage is in fact a financial and legal institution and should thus be extended to all citizens (hell, even the worst of criminals are still allowed to marry.)
Foreign policy: Obama is much better received than Romney and with an increasingly co-dependent international community, cooperation is what we need.
Military spending: If you think we need to spend MORE on the military right now I don't want what you're smoking. Our expenditures are equivalent to 41% of the world's total.