KAT, Booker, and then either Brice Johnson or Larry Nance Jr.
edit: a variation of this exercise that could also be interesting and fun would be to extend it to 2014's draft too, with the same rules (1 player from 1-10, 1 from 11-20, and 1 from 21-30), but with a twist: you can only take 1 player from each year. so, 1 guy from 2014, 1 guy from 2015, and 1 guy from 2016, while also following the original rules of taking a player from every 1/3rd of the draft.