As i have said- to me I think the most obvious comparison is a young Jason Kidd- though Kidd obviously came in with a lot better defense.
If he can improve his shot and his D he has the chance to be a star and an ALL NBA player down the road 3-4 years from now. If he doesnt he will prob end up as a rich-man's Ricky Rubio- id prob mark that as his basement.