Candidates aren't chosen by the media. Good candidates are good at manipulating the media. This is why Obama was one of the best candidates ever and he will probably get reelected despite the economy and everything else that has gone wrong over the last 4 years.
Please don't pretend that there is not an overall liberal bias in the media. That is just insulting. Even if they're trying to maintain objectivity (which I question), it is a fact that most professional journalists are liberals and voted for Obama. Bias is inevitable. Liberal bias is inevitable when the vast majority of journalists are liberals.
Most college graduates, statistically, side liberal nationally. So, yeah, most journalists probably skew liberal.
However, let's stay on point. Why is Romney the best candidate? Why not Mitch Daniels, Paul Ryan, etc.
When it comes to going up against a formidable campaign opponent in Obama, why do you trot out a guy that's pretty bland, ultra-wealthy (in a time where the economy is down), that is prone to putting his foot in his mouth. Oh, he's also a Mormon, and that will make a difference to some people.
Put political points aside. How is he supposed to compete with a very polished, smooth candidate that will most likely outspend him two to one?
There HAD to be a better option out there. I'm just guessing, party rhetoric aside, that a lot of people think they can't beat Obama. That's my only explanation.