I think every QB from both conferences was very deserving, but there were also a few from both conferences that got the short end of the stick, namely Luck and Drew Brees.
As for RG3, while I think he is deverving I would have picked Brees over him. Imagine if RG3 were not the media darling that he is? i'm not discrediting him for the great season he has had, but there's a lot to be said about exposure, and RG3 has had a lot of it this season, and I believe that is one of the primary reasons he got in.
People will point at Luck's 18 INT's and RG3's 4 or 5 INT's, but Luck has thrown more passes, has less of a running game and a less dependable offensive line to depend on. Luck is being asked to do more with less, and he is also being asked to run the entire playbook, and go through all of his progressions like a veteran QB would be asked to do. RG3 is in a different situation. He has a running back, and a decent offensive line. The coaches are not asking him to run a full fledged Pro offense yet. In fact I read an article that said the Redskins have adopted a system that using a lot of the same style that RG3 played in college, while mixing in some of the Shanahans concepts.