If I was american these would be my reasons:
1. Environment/wildlife – Republicans are horrible with this, democrats have a history of trying to conserve whats there. Sarah Palin especially scares me as shes voted to keep polar bears off the Endangered Species List. She also refuses to give any type of protection to the local whale population. I didn’t do much looking into her so there might be much more.
2. Health care – Call me socialist if you will, but I don’t think anyone should forgo surgery because they cant afford it. I think as it is the American system is broken and very over priced for its users. I have heard all the arguments about how Canadians flock to the states for better treatment. For the most part these are isolated cases. Its not just us who think the US system is broken ask anyone from almost anywhere that is not a third world country. Europeans, Australians, etc all agree with me on this. Also guess what Americans pay almost the same level of Federal tax as Canadians, so how come you don’t have coverage?
3. Pro military. I don’t think its cool to build weapons for the sole purpose of lining the pockets of Halliburton and similar companies. The USA doesn’t need more military spending. But this to me goes back to the health care issue, if you reduced spending then you could offer free health care but of course no democrat or republican would ever suggest that since they would lose the popular vote. But I think democrats are a little bit less war hungry.
I am not going to make up 5 reasons as those are basically it. So I would vote democrat because their values are closer to mine than the opposing party.