I hope they aren't too high on either, because I don't see a lot that separates either from a bunch of SF prospects could be available around 19. Obviously, though, I haven't access to the player interviews...
But PJ Washington. KZ Okpala. Darius Bazley. Brandon Clarke. Hachimura and Little both played PF in college because they lacked the skill set for SF... If we are including PF's (rather than SF's), you can add Samanic to the available (not to mention actual Big - Kabengele, Goga, Claxton...).