Some of the things here could be fine tuned here and there, but this document is a fantastic start.
Love the changes to the Ranger so far. I'm sure they'll need to add a few more Deft Explorer options before official publication so it's not simply a matter of choosing which of the three things you get at which level in which order.
Also love the new Battle Master maneuvers (particularly the ones that let you use Superiority Dice for other pillars), and I simply appreciate seeing new Fighting Styles, too. Blessed Warrrior and Druidic Warrior for Paladin and Ranger, respectively, both quite nice.
Also, Paladin with Spirit Guardians now ... I did a spit take when I first saw that, but honestly, I've warmed up to the idea? Now Paladins only have to wait until Lv. 9 instead of 17 to do anything worthwhile against hordes, so really, it's just smoothing the power curve there. Plus many campaigns don't go too far past Lv. 9, so, again, smoothing the power curve. Only thing is that it pretty much makes Oath of the Crown pointless, as it didn't have much to offer besides Spirit Guardians as an Oath spell.
Speaking of Paladins and smoother power curves, I would've liked an aura expansion to 20 feet around Lv. 13 or so, making a nice intermediate between the starting 10 feet and the 30 feet at Lv. 18.