It depends. Remember, brewing is a craft, and every craftsman has his or her own opinion about what's best. Personally, I've been going straight from the fermenter to the keg for a couple of years now, but I'm still not satisfied with the clarity until a beer has been sitting for a month or more. I may experiment with going back to bulk conditioning for lighter beers, to see if it helps them clear. I think I'm also going to start crash cooling and adding gelatin to see if that helps.
It's all a matter of preference. Brew as you like, and you'll always be happy.