Again with the archaic positional designation. He should be classified as a big wing. Since he's a poor range shooter, I'd compare him to the likes of Hollis-Jefferson, Kidd-Gilchrist and (Stanley) Johnson.
The first two now play almost exclusively as nominal PF's and the third probably would if the 2 best players on his team weren't bigs, but they're still wing defenders. All that really means is, they longer play with two traditional bigs, so they don't have to serve as pseudo perimeter players on offense.