I made some changes, and adding some preliminary grades to some of these guys. No exact science (one could say I pulled them out of my butt) to the numbers, just based off a gut feeling about the guy.
You can see an explanation of what the numbers mean by clicking here:
viewtopic.php?f=3&t=10924* - indicates a player that I've seen some of, but haven't finalized my grading for them because have a bit more tape to watch
QUARTERBACKS
1. Sam Bradford, Oklahoma - 8.1
2. Colt McCoy, Texas - 6.9
3. Jimmy Clausen, Notre Dame - 6.6
4. Tony Pike, Cincinnati - 5.9
5. Sean Canfield, Oregon State - 5.6
6. Tim Tebow, Florida - 4.8
7. Jevan Snead, Mississippi - 4.2
8. Dan LeFevour, Central Michigan - 3.5
9. Levi Brown, Troy - 3.2
10. Max Hall, Brigham Young - 2.9
11. Tim Hiller, Central Michigan - 2.8
12. Joe Cox, Georgia - 2.5
13. Bill Stull, Pittsburgh - 2.4
14. Darryl Clark, Penn State - 2.4
15. Jarrett Brown, West Virginia - 2.2
16. Corey Leonard, Arkansas State - 2.2
17. Mike Kafka, Northwestern - 2.1
18. Juice Williams, Illinois - 2.0
19. Thaddeus Lewis, Duke - 2.0
20. Todd Reesing, Kansas - 1.8
21. Zac Robinson, Oklahoma State - 1.6
22. Chris Todd, Auburn - 1.4
23. Greg Paulus, Syracuse - 0.9
RUNNING BACKS
1. C.J. Spiller, Clemson - 7.2
2. Jahvid Best, California - 7.0
3. Ryan Mathews, Fresno State - 6.1
4. Toby Gerhart, Stanford - 5.6
5. Jonathan Dwyer, Georgia Tech - 5.5
6. Dexter McCluster, Mississippi - 5.2
7. LeGarrette Blount, Oregon - 4.9
8. Ben Tate, Auburn - 4.4
9. Joe McKnight, USC - 4.2
10. Javarris James, Miami - 3.9
11. Chris Brown, Oklahoma - 3.8
12. Brandon Minor, Michigan - 3.7
13. Roy Upchurch, Alabama - 3.4
14. Keith Toston, Oklahoma State - 3.0
15. Trindon Holliday, LSU - 2.9
16. Shawnbrey McNeal, Southern Methodist - 2.8
17. Curtis Steele, Memphis - 2.4
18. Dimitri Nance, Arizona State - 2.2
19. Andre Dixon, Connecticut - 2.1
20. Lonyae Miller, Fresno State - 2.0
21. Reggie Arnold, Arkansas State - 1.9
FULLBACKS
1. John Conner, Kentucky - 4.8
2. Rashawn Jackson, Virginia - 4.7
3. Jack Corcoran, Rutgers - 4.6
4. Manase Tonga, Brigham Young - 4.0
5. Cory Jackson, Maryland - 2.5
6. Chris Gronkowski, Arizona - 1.6
WIDE RECEIVERS
1. Dez Bryant, Oklahoma State - 7.9
2. Arrelious Benn, Illinois - 7.1
3. Demaryius Thomas, Georgia Tech - 6.7
4. Golden Tate, Notre Dame - 6.5
5. Mardy Gilyard, Cincinnati - 6.3
6. Jordan Shipley, Texas - 6.3
7. Mike Williams, Syracuse - 6.2
8. Damian Williams, USC - 6.1
9. Dezmon Briscoe, Kansas - 5.5
10. Shay Hodge, Mississippi - 5.4
11. Eric Decker, Minnesota - 5.0
12. David Reed, Utah - 4.5
13. Danario Alexander, Missouri - 4.3
14. Brandon LaFell, LSU - 4.2
15. Riley Cooper, Florida - 4.2
16. Carlton Mitchell, South Florida - 4.0
17. Blair White, Michigan State - 3.8
18. Antonio Brown, Central Michigan - 3.7
19. Freddie Barnes, Bowling Green - 3.6
20. Emmanuel Sanders, Southern Methodist - 3.5
21. Rich Gunnell, Boston College - 3.4
22. Jacoby Ford, Clemson - 3.1
23. Alric Arnett, West Virginia - 2.9
24. Kerry Meier, Kansas - 2.8
25. Tim Brown, Rutgers - 2.3
26. Naaman Roosevelt, Buffalo - 2.2
27. Seyi Ajirotutu, Fresno State - 2.0
28. Ray Small, Ohio State - 2.0
29. Bryan Anderson, Central Michigan - 1.9
30. Carlos Singleton, Memphis - 1.7
31. Oderick Turner, Pittsburgh - 1.5
TIGHT ENDS
1. Rob Gronkowski, Arizona - 6.9
2. Jermaine Gresham, Oklahoma - 6.9
3. Aaron Hernandez, Florida - 6.8
4. Jimmy Graham, Miami - 5.9
5. Anthony McCoy, USC - 5.8
6. Ed Dickson, Oregon - 5.6
7. Tony Moeaki, Iowa - 5.4
8. Dennis Pitta, Brigham Young - 5.3
9. Garrett Graham, Wisconsin - 5.2
10. Dorin Dickerson, Pittsburgh - 4.9
11. Greg Boone, Virginia Tech - 4.7
12. Andrew Quarless, Penn State - 4.6
13. Colin Peek, Alabama - 4.1
14. Mickey Shuler, Penn State - 3.8
15. Nate Byham, Pittsburgh - 3.6
16. Steve Maneri, Temple - 3.5
17. Michael Hoomanawanui, Illinois - 3.3
18. Jeff Cumberland, Illinois - 3.1
19. Richard Dickson, LSU - 3.0
20. Jim Dray, Stanford - 2.4
21. Riar Greer, Colorado - 2.2
22. Ali Villanueva, Army - 2.0
23. Dedrick Epps, Miami - 1.9
CENTERS
1. Maurkice Pouncey, Florida - 6.9
2. J.D. Walton, Baylor - 4.9
3. Matt Tennant, Boston College - 4.5
4. Eric Olsen, Notre Dame - 4.3
5. Kevin Matthews, Texas A&M - 4.1
6. Sean Allen, East Carolina - 3.8
7. John Estes, Hawaii - 3.6
8. Ted Larsen, N.C. State - 3.2
9. Jeff Byers, USC - 3.1
10. Kenny Alfred, Washington State - 2.9
11. Robb Houser, Pittsburgh - 2.7
12. Thomas Austin, Clemson - 2.4
13. Jim Cordle, Ohio State - 2.1
14. Chris Hall, Texas - 1.9
15. Reggie Stephens, Iowa State - 1.8
16. Alonzo Durham, Nevada - 1.5
17. Andrew Lewis, Oklahoma State - 1.4
GUARDS
1. Mike Iupati, Idaho - 7.1
2. Mike Johnson, Alabama - 6.4
3. John Jerry, Mississippi - 6.2
4. Sergio Render, Virginia Tech - 5.9
5. Jon Asamoah, Illinois - 5.8
6. Kyle Calloway, Iowa - 5.4
7. Mitch Petrus, Arkansas - 5.1
8. Shawn Lauvao, Arizona State - 4.7
9. John Malecki, Pittsburgh - 4.4
10. Joe Thomas, Pittsburgh - 4.2
11. Zane Beadles, Utah - 4.1
12. Brandon Carter, Texas Tech - 3.7
13. Brian Simmons, Oklahoma - 3.6
14. Marshall Newhouse, Texas Christian - 3.4
15. Kurtis Gregory, Missouri - 3.2
16. Vince Vance, Georgia - 2.9
17. Chris Marinelli, Stanford - 2.0
OFFENSIVE TACKLES
1. Russell Okung, Oklahoma State - 8.4
2. Bryan Bulaga, Iowa - 8.2
3. Trent Williams, Oklahoma - 7.8
4. Charles Brown, USC - 7.4
5. Anthony Davis, Rutgers - 6.8
6. Bruce Campbell, Maryland - 5.8
7. Jason Fox, Miami - 5.2
8. Ciron Black, LSU - 4.9
9. Selvish Capers, West Virginia - 4.9
10. Rodger Saffold, Indiana - 4.5
11. Ed Wang, Virginia Tech - 3.9
12. Mike Tepper, California - 3.7
13. Will Barker, Virginia - 3.5
14. Sam Young, Notre Dame - 3.4
15. Kevin Haslam, Rutgers - 3.1
16. Adam Ulatoski, Texas - 2.5
17. Jeff Linkenbach, Cincinnati - 2.4
18. Dennis Landolt, Penn State - 1.9
19. Drew Davis, Alabama - 1.7
20. Kyle Jolly, North Carolina - 1.5
Scroll down for defensive rankings.