It varies from shot to shot. It depends on the length, the green, how far off I am, if there is a bunker in the way or not.
If it's a total preference I'd rather get the ball up in the air and land it softly, but sometimes that just isn't the right play.
Like Tiger says in his book, try to play the best shot, but if you have a go-to club and shot, it's always a good bet because you'll be confident holding that club and making that shot.