I am not madly in love with the current sitting President because of his definition on what winning something is, and desire to compromise a win into what the rest of the world would define as a loss, only to then have him redefine what a loss is to call it a win.
Given the choices I see right now, Even knowing what I know, I would have to vote for Obama again. Here are my reasons taking each GOP candidate into consideration.
Perry: A bigoted individual in the pocket and totally subservient to the Religious Right. He did not tell the truth regarding Texas finances under his administration and in so doing that makes him untruthful. He is not the brightest bulb in the chandelier and I see a repeat of the years of Bush II. If he were to choose his running mate we would have a good chance of seeing another religious extremist with both giving far greater power to the religious right than they already have and if we did not see that, it would be a Presidential Administration with internal fighting and this would compromise it's ability to move forward.
Romney: A track record as a decent qualified administrator, but a family legacy of great wealth and power that was of very limited success. Grew up with a Silver Spoon in his Mouth based on the family legacy, too conservative for the Democrats and way to liberal for the extremists of the Republican Party. Probably would in spite of these concepts have the best chances for election at trying to draw conservative Democrats away from Obama. Religious background as a Mormon would work against him with some groups and calm down others at least partially. Is the best statesman and the most intelligent and honest of the GOP candidates. Would if asked probably make an intelligent choice for VP, but if the party chooses he would very likely be paired with some individual like Bachmann or Palin to increase his appeal to the lunatic fringe.
Paul: No real significant marketable experience in public service, no track record visible enough that anyone would remember, not well enough known by the main stream. Not enough money behind him and easily chewed up in the money wars. He simply would fade into the background. Some ideas sound in concept but impractical in reality and not do-able in the long run. Does not have a good grasp on the job of the Presidency and has made statements that would indicate it would take an Imperial Presidency granting a great deal more power to the Executive Branch to get through what he has talked about. Not going to happen. The congress already thinks that the legislative branch should have more power and the other two branches less.
"The Pizza King": Simply no experience in public service, already has expressed ideas making him a target, too much of a "hothead" and his temper could be exploited and will be exploited greatly against him. Has operated a moderately successful chain of fast food restaurants that make and market a product that is easily one of the most unhealthy products to consume on this planet. If he were to take the nomination and he had a choice in who he would pick for a VP candidate you might see Bachmann or Palin as a VP candidate, and good or bad based on that Obama is in again.
Bachmann: For a person with a supposed Law Degree, no understanding of the limitations and powers of the job of President. Very limited track record in public service, a target because of her husbands Christian moralist business ventures, a target because of her statements which are preposterous, a target based on her emotional instability and simply incompetent when it comes to what the job would require of her.
In am still expecting a "Dark Horse" from the Republican Party to show up at the last minute. The reason for this would be that the Dems would use up their war chest combatting the existing candidates and not have time to dig out the dirt on the "dark horse" and or combat what the GOP would say. It would be the most intelligent decision they could make. I don't care what he says, the most likely "Dark Horse" candidate to be drafted at the last minute by the party would be none other than Jeb Bush. Notice the "give aways". If Jeb had been public in throwing his support behind any of the current candidates I would think it less likely. If he keeps completely "out of sight" and very low profile (which he has done) he becomes an ideal candidate for the office. He has the experience, he has the name recognition, he has conservative supporters and he is ambiguous enough to make it. The minds of the total lunatics would think he would be just like his brother and they could have their dream in another "Bush-Cheney" ticket, and those who want "Reagan Republican" would picture him to be more like his father and in so doing he would be far better than anything they have got right now.