A number of players have a legit case for being the most improved player in the year this season. With the lockout shortening the season, more players were needed to survive the wear and tear. As a result, many players came out of nowhere and produced at a high level.
That said, the player most deserving of the 2012 Most Improved Player award is Ersan Ilyasova of the Milwaukee Bucks. He was always a solid player but he played at a star level in 2012. Not only could he score using his silky outside jumper, he rebounded like a madman.