I really like Buster Posey.
Even when you see him in street clothes, he looks like a baseball player. He also makes a huge difference on the field, both offensively and defensively and apparently off the field as well. Since calling up Posey, the only season the Giants haven't won the World Series was the one where he was injured. He also handles everything with immense class. When a reporter asked him last season if he was frustrated that AT&T was hurting his power numbers, he answered that he wasn't. It just meant he had to start hitting the ball farther.