All Star game is a show and I think should be more based on individual than team.
50% player overall abilities
25% stats
25% team record
For All NBA/MVP Type votes
50% player overall abilities
35% team success
15% stats
There is a natural correlation between 'player overall abilities' and stats, but not enough to make them one category. See: Garnett, Kevin; Duncan, Tim; Rondo, Rajon.