If the rookie rankings are based solely on the play from this season I would rank them:
1. Wilson
2. RGIII
3. Luck
4. Tannehill
5. Weeden

If you're projecting how well they'll do 5 years from now, i.e. they held a re-draft at the end of the season, there isn't a team in the league that wouldn't take Luck first including Washington, Wilson would probably be picked second followed by a tie for third between RGIII and Tannehill.