I really like Friday and Saturday. Even though I've seen over half the known lineup, there's some cool shit to see across the spectrum. The rap ended up fairly good too. So what I'd see without having to research (which I will):
Thursday - Big Something*, Andy Frasco*, Funk Hunters*, Regrettes
Friday - Tool*, Bassnectar*, RTJ*, Megan*, Tipper*, Brittany Howard*, Primus*, PPPP*, Turkuaz* w/ Jerry & Adrian*, Detox Unit, Uncle Acid*, Luzcid* (Houston in the hau)
Saturday - Lizzo*, Oysterhead, Tenacious D*, Jason Isbell*, King Gizzard*, Kevin Gates*, Subtronics*, Denzel*, J.I.D*, Billy Strings, Mt. Joy*, Yaeji, Markus King Band, Wooli*, DJ Mel*
Sunday - Tame*, Lana*, Leon*, Young Thug, Grace Potter, Greensky*,
Pretty cool but heavily weighted toward Friday and Saturday for me.