I don't like this list much, but if i had to pick it would be Golden Tate. The kid has all the tools to be an incredible WRs. He hasn't shown up yet this year, but the Hawks did take him with a high pick for a reason. In PPR leagues especially Tate will be special. His biggest asset is his yards after catch ability. This guy is basically a running back. On a 4th and 1, i would probably hand the ball off to Tate over lighter RBs in the league like Forte, Bush, and perhaps even Jamaal Charles. Tate is very stout, but he has incredible hands and body control. The reason for his deficiency this year is that he can't be trusted out there. He needs a little time to understand what is expected of him and how to deliver. Run the proper routes, give proper effort, learn how to block, learn how to think out there during plays, etc.
WR is a curious position. Rarely do WRs come straight out of college and turn into studs. It takes time to develop. Unless you have Larry Fitzgerald's talent, in which case you're already so good it doesn't matter. But even Dez Bryant, right now he is no where close to where he will be in a few years. In a dynasty or deep keeper league, there may not be more than 15 or 20 players overall i would take before him. His talent is that supreme. This is another reason why I'm so confident in a player like Crabtree. Crabtree and Dez Bryant are the 2 most talented young WRs in the league. I expect both of them to be top 7 WRs in this league with 2 years. And at their peak, we are talking super elite. Calvin Johnson, Larry Fitz type elite.