Aside from of course that he's 6"9 230 and can guard anyone on the court and well. That he probably DWTDD coming from FSU and also aside from the fact he'll slap a Brough.
According to Sir Thomas of D, via Mark of the Bermans the Knicks are high on Singleton. And should they draft Singleton, since he doesn't fill the "need" of a PG or a Center, the Knicks will be aggressive in getting another pick so they could draft a PG like Charles Jenkins or Imani Shumpert (who will be referred to as the Pharcyde).
If something's going to force us to grab another pick, I'd love for it to happen. Singleton may not be offensively as gifted as he is defensively, but that sort of thing can come in due time. Its really not like he's completely useless on offense either (**cough Faried). And Pringles has had this sort of freak of nature on his team that's more of a defender and simply a fast-break finisher in Shawn Marion.
Should we pull off getting Singleton and then Iman Shumpert, we'd get possibly the two best defenders at their position in the draft. Or maybe so you get a badly needed shooter, we take Jenkins with the acquired pick.
Either way I like the idea of waiting for the PG position to be filled. And hopefully the C position will wait till FA.