Actually he's not that liberal. He's more of a regular populist.
I really like him because he's willing to challenge elections. I personally believe all elections should be challenged and recounted even if there's only a shred of evidence supporting fraud because you want to make sure you get the candidate the people support.
Well as ag has said he's basically a political chameleon. Nobody actually knows what his policies are besides his stupid slogans and wanting to do things "for the poor" though Obrador seems to follow in the path of the old PRI which was Socialist, dictatorial, and populist.
LOL. What you said secondly is laughable. While your intentions might be altuistic AMLO's certainly aren't. Basically his motto now for the campaign is "I will accept any result as long as I win." This election is one of the fairest in Mexican history it's just that AMLO is really looking for a win no matter how he has to pull it off, nor am I suggest that Calderon is any better he would have done the same.