I would have to go with the left on most issues. I think abortion should be available. The concept that a mass of generalized, rapidly dividing cells is a full human is ridiculous. Many right-wing conservative types claim that abortion is murder, but I disagree.
Gay marriage is perfectly acceptable to me. What's people's problem with it? They may say it's not natural, but then again sitting in a desk all day in front of a computer or piano isn't natural. Eating cakes isn't natural. Getting ears pierced is not natural. Why don't we just all don loincloths, grab spears, and go out in the jungle? Then we can live naturally. Actually, who created the concept of marriage, anyway? There have been more than a few cultures with no marriage tradition, and they get along just fine.
I don't support the death penalty. Nor am I proud of the fact that the US is amongst the only civilized countries that practice it. We are in the company of China, Saudi Arabia, most of Africa, the former Afghanistan and Iraq, Cuba, etc.
As for the environment, I'm in full support of legitimate environmental protection. It's bad enough that I was born to live in a time when the environment is already badly degrade; anything to make it worse is just selfish and ignorant.
Gun control is the only issue where I might be a tad more right-wing. I would support common sense gun registration, and some restrictions on especially dangerous weapons. That said, I wouldn't take all guns out of everybody's hands. Few things disgust me as much, however, as those reactionary NRA types. They take any simple measure to reduce crime as an infringement on the constitution, and call anybody whose not like them "socialist," "liberal," "atheist," (this always gives me a chuckle), and other things. I spend basically all day around conservative, christian, NRA, war-supporter types and sometimes their opinions shock me.