It makes sense that being hated in CBB usually directly translates to being GOOD. The obvious answer therefore is Christian Laettner. He was great, and handsome, and a total d-bag.
Redick and Noah come to mind very quickly. Noah was annoying as crap (as was Horford always flexing). I heard a story years back about Redick getting a speeding ticket while visiting Duke's campus a year or two after leaving Duke. Seemed crazy at the time. Cop must've been a UNCheat fan.