Seems like Kislev is getting the best in terms of units, the Incarnate of Beasts seems pretty op.
It's gonna make their armies look kind of disjointed, though, imho. The hags nearly look like an entirely different faction and they probably could've benefitted from more infantry units that fit their theme.
I hope Beastmen can get access to the incarnate somehow at some point, seems more fitting for them honestly.
Solid summary by Zerkovich. I like the look of the Tzeetch SEM, curious to see what its upkeep is and how they can afford it. None of the factions really stand out to me, though.