Horford probably deserved to be one of the last chosen based on talent, but if I were picking an All-Star team, he is exactly the kind of unselfish player I would want on my team as he would make my buddies and I look really good!
Nobody wants some decent, but not great, guy out there jacking up bad shots. Everybody wants the ball passed to them at the right time for an easy score...especially from a big man who also sets solid screens and plays solid defense (as solid as can be expected in an A-S game).