I voted Isaac just because he has the highest upside. Then again he could be a poor mans Channing Frye.
#'s 1-5 in this draft all have high hopes and could see any of them as multiple time all stars and franchise players. The problem is every draft has these top 5 or so having a few busts or just be a solid starter. Time will tell with Fultz, Ball, Tatum, Jackson, and Fox.