Interestingly, I'm a point guard and always have very strong feelings on point guards, but always seem to be wrong.
Guys I've loved on draft night: Acie Law, TJ Ford, Marcus Williams, Rubio, Mateen Cleaves, Telfair, DJ Augustin.
Guys I've thought would bust: Mike Conley, Curry.
The only one I can ever remember really hitting on was Kyle Lowry.
<humble brag>
Also interestingly, while I don't feel as strongly on them, I seem to hit it perfect on bigs: Boogie (I thought he was the no brainer at #3 and even worth #1 consideration), Noel (would have taken #1), Embiid (also considered #1 even with injuries), Deandre Jordan, Myles Turner, Andre Drummond were all guys I couldn't understand how they kept slipping so far. My next crop that I was very high on are WCS, Labissiere, Thon Maker, Giles, and Isaac.
</humble brag>
The other non-PG busts of mine that come to mind are: Greg Oden, Yi Jianlian, Corey Brewer.