We have the thread over here for who should be MVP this season. If you're just making a case for that, post it there.
This is about what criteria you would use to judge who deserves it, or what you think the criteria should be to vote on it.
First I look right at the words involved, "Most Valuable Player", and jump right to the middle with value. It's not simply about the best stats (there is an OPOY award for a reason) or the team with the best record, but the player that adds the most value to his team's success.
If I'm picking MVP, I'm almost always starting with a QB. They touch the ball every play and are the most important position in the game. And when I look at them, I'm looking for the person that does the best job of overcoming some adversity on his team. Maybe they're not the most talented team in the league, but they keep winning because he puts them over the top in key areas of the game (4th quarter, 3rd downs, road games, etc.). You can have a great QB season and be 8-8, but that's not going to be MVP worthy in my book. You still have to get the wins while producing some very respectable numbers. And you need to show up against the good teams. A lot of bad teams out there this year that guys have padded some numbers against. The few quality matchups on the schedule are important to do well in.