Chances mixtape was crazy. I can definitely see people not liking it but I don't think I've liked a mixtape as much since Section 80. The style was original, the lyrics were dope and it had a lot of cool melodies and concepts.
Gonna be honest I haven't given Wolf a listen. Every time I try Im reminded that Im listening to Odd Future and Tyler the Creator. Any afflitiation with that camp makes it hard for me to take you serious. Only ones music I like is Frank Oceans

By default maybe A$AP Rocky, June will probably change this.
Runner Ups:
Lil Wayne-IANAHB 2 for album
Scotty ATL-FAITH mixtape/Big KRIT King Remembered In Time mixtape