Which top 5 draft pick is making the most impact?

Tennessee was 0-3 under Kerry Collins where they were always getting blown out vs 2-4 under Vince Young including 2 1 point losses to very good Indy and Baltimore teams. I would probably have to say Vince Young has had "the most impact". Kind of an unfair comparison with him being a QB though.

In all fairness though, AJ Hawk and Mario Williams have both really started to turn things up and are having good seasons. And while I haven't seen much of D'Brickshaw by himself he plays on an overall good o-line, so he can't be doing that poorly.

It would appear all 5 of the top 5 picks are doing well.