This ladder I mostly played amazon and a bit of assassin so my feedback will be on those.
Bowzon doesn't feel like a good build anymore, most things bowzon can do, magfield can do and with less gear and more survivability. Bowzon should be all about that high damage and glass cannon style gameplay yet without expensive gear you're a glass water pistol. Even with some really good gear its still "meh" and not amazing. Scaling and the tree in general just doesn't give much. Over 20 point investment into dragonlore is only marginally better than T6 jitan (because no min dmg). Pierce MO removal and damage rework were big nerfs without any compensation. Wyrmshot for large aoe dmg is still great but barrage or sunstrike for single-target is just not there. Im not sure where bowzon fits in the game right now. Its single-target is mediocre at best. Wyrmshot farming potential is good but farming anything with 0 defense will just make you pull out your hair, being squishy just sucks so much. Bowzon used to be my favorite build but I wont touch it again until some changes happen.
Magzon feels pretty tanky. You can reach max block with some average crafts and ontop of that some nice defense too. 75% block and 350k def yes please
Hooowever, only mag field does anything really. You max thundercrack only for the asterism synergy and never touch it again.
Hammer of Zerae has a very big WDM modifier but it mostly just hits once and slowly so it doesn't matter at all.
While mag field is pretty decent the aoe could be a tad bigger, farming with it otherwise is just very slow because the coverage is pretty small. Gear selection could also be improved with some reworked TUs/SUs since for shield theres only danmaku and for weapon theres T6 war scepter aaand maybe SU scepter, haven't tried that yet but losing 3 sockets sucks and the rest is just what every other WDM build uses.
Pounce is still decent with enough psn pierce. Farms really fast but seems to get "stuck" and pounce more in one place than before.
Cant comment on blood and java since I didn't test them enough.
Assassin PB rework didn't achieve anything else other than cheesing ubers before 114. Early game was fine but where it now falls of is where it needs it the most. Melee and throw are also in a terrible spot. Melee tree needs something like lioness - give def but lock out ranged skills (and make dark portal work somehow please). Maelstrom would actually be a decent skill if it didn't totally wiff on the first impact, making it pierce through monsters without exploding on contact, like just a flying iron spiral, would be a much needed improvement. Crafted barb helm with kraken stance also gives like double the damage maxed out ways give which is a little silly. Don't nerf barb, buff other classes please.
TL;DR assassin sucks, amazon sucks, pls buff