That's a nice ideia...A couple of seasons ago, the users of the league in which i was playing had a unnoficial vote after each league game to award the best player in that specific round...It was based on each user opinion, box score, rating, etc...
It would be good to see a weekly MVP for each league implemented in BB...Maybe the criteria could be adding the ratings and awarding MVP the player with the highest rating sum for that week...Don't know if it would be hard to develop but i'm positive about that being a good add to the game...no financial benefits needed...just for feeding egos...:)