I'm just gonna sit back and wait for bob to school you... but here's a couple right off the top of my head...
Ron Paul is:
-Anti-abortion
-Pro wasting money on securing our borders
-Cutting funding to many government offices (some of which could probably go without any harm, but many of which are still needed)
Personally, I find Obama's stances to be far more aligned with my own, as well as his views on working to end corruption in government, which I feel is a probably the biggest issue, meaning if we end the corruption, the rule of the country really WILL be with the people, not corporations and rich people.