I think basically everyone expects the Jazz to take Williams if he past #2, and if not, take Kanter, unless he has too many uncertainties, in which case, they'll take Knight. Not a whole lot of mystery here if the Jazz stay at #3.
If the Jazz fall in love with Vesely or Biyombo and drop a spot or two, I guess that would be the only surprise.
The bigger question is what the Jazz do at #12, and if they trade away players on draft day.
But by and large, if the Jazz take a chance, it's usually on superior athletes who are prototypical for their positions, examples being Kirk Snyder, Ronnie Brewer, Gordon Hayward, etc. I don't think Jimmer is going to be the pick at #12. I could picture Marcus Morris, Alec Burks, maybe Tristan Thomas.