I actually do really like Barr even though I disapprove of some of his beliefs. He's anti-abortion and very religious; he wanted to ban the practice of Wicca in the military. While I see the latter point as somewhat moot, I still disagree with it as a matter of principle. People should practice what they choose. But he's backed away from the religious stuff as of late. And this is America; we can't discriminate against someone for being a Christian.
Trade: McCain or Barr. Both proponents of free trade and free market.
Health Care: this is an extremely difficult matter for me. Being in college, I know several people who can't afford to not have universal health care (or a step towards it, as Obama proposes). Still, I see a point in privatizing health care. I don't believe that the insurance companies should have control. They're the reason health care costs are so high (insurance companies and the damned medical malpractice attorneys). I believe that we can significantly lower health care costs by privatizing health care and eliminating the insurance companies. There are other methods to ensuring health care to people. Furthermore, if we can lower costs even thirty percent, it would decrease the number of people who can't afford it. This would make it easier to support the people who still couldn't afford it. I'm with Bob Barr. He's the closest to what I believe.
Taxes: I'll go with Barr again.
Social Security: while I agree that it should be an individual system, I do believe that there are some people who won't be able to afford it. However, I don't agree with Obama taking it away from those who earn $250,000 or more per year. I have to side with empowering people to make their own investments. We can still help those who need it, but not on such a forced (i.e. governmentally controlled) basis as Obama wants.
I'm a bit uninformed on the net neutrality issue, and I don't really understand what the problem is.
I'm with Barr on most foreign policy issues. He wants to steer clear of many foreign conflicts, but supports free trade and encourages trade with foreign nations. I'm not sure whether he supports trade unconditionally (i.e. regardless of their political/governmental formula). Barr has said, regarding the Iran issue, that "an attack on Iran would be unnecessary, counterproductive, costly and dangerous." He agrees with diplomatic relations between nations, and believe that this is the way to solve conflicts. He says that "only an imminent threat can ever justify a preemptive strike."
Gay Marriage: I believe that citizens should have the right to marry whom they choose. Obama most clearly supports this, but both he and Barr agree with allowing the States decide.
Abortion: Obama. People have the right to choose.
Gun Control: Barr. I don't get Obama sometimes; he wants to extend individual rights, and then he says we shouldn't have the right to bear arms (or more specifically, handguns)? I can't agree with him on that. Citizens have the right to purchase a pistol. I don't even see that as much of an issue. However, I do agree with mandatory tests/classes to obtain a handgun. Same with learning to drive; you have to pass a test to get your permit.
Immigration: if they're already here, I don't think we should enact legislation to get rid of them. But I do agree with exponentially increasing border patrol. We can't just allow it. I'm with Barr.
Stem Cell Research: mostly Obama. I have no idea why the fuck you would vote against stem cell research. It shouldn't even be an issue.
Eudcation: Don't really agree with Barr on this one, although I'm unsure where I stand. I don't think that education should be privatized. This is something that should be regulated (I believe) and should be readily available to all citizens.
Patriot Act: During the Libertarian Convention, Barr said of the Patriot Act: "I'd drive a stake through its heart, shoot it, burn it, cut off its head, burn it again, and scatter its ashes to the four corners of the world." Hell fuckin' yeah.