It is tough to not pick KG because of his influence on D, which elevates everyone else's game so much on both ends of the floor.
Its also tough to ignore paul's unselfish play and clutchness.
Rondo's improved aggressiveness and poise has also coincided with the teams all-around improvement in their play after the first few weeks of the season, but......
Ray Ray has been Mr. Consistency. His shooting has opened up the entire floor, and has likely benefitted from and aided Rondo's great progress.
If i could, i'd pick all 4 for mvp,,,but if i have to single out just one, i'll take Walter Ray Allen