Here's my top 10:
Top Tier - Irving, Williams, Valanciunas
Mid tier - Kanter (I'm unsure of where to put him, nobody has ever seen him playing competitive basketball in 2 years), Burks, Biyombo
Lower tier - Singleton, Fredette, Knight, Leonard
Not a fan of Thompson (an off-the-ball shooter who lacks the speed/athleticism to free himself... he may develop into Rip Hamilton or Reggie Miller but I doubt it, he'll probably settle as Kyle Korver - and he'll be a comparable defensive liability) or Faried (I have no idea why people think he's a good defender... who is he going to defend in the NBA? 4s? 5s? 3s?)