Assuming Rubio does not enter the draft, i think Hasheem Thabeet, Blake Griffin, and James Harden have the potential to make a significant impact on the next level from years to come. They are the best talent in the draft and you can argue to put Greg Monroe in the discussion too. Im not quite put on Brandon Jennings; definately playing in Europe will get him ready for the NBA quite a bit.
Blake Griffin will be very good but WHOEVER GETS HASHEEM THABEET will be the luckiest team in the draft and in 15 years we will say he was the best player in the 2009 NBA Draft. Blake Griffin will be Very Good! James Harden will be very good.