The absolute bonkers amount of stats and viable playstyles...
I seriously hate this modern "less is more" mentality especially when it comes to RPGs, combining and simplifying stats.
World of Warcraft did it to make it easier for them to balance things when they destroyed the old talents system and made it a streamlined progression that lacked any meaningful ways to make a hybrid build.
The Elder Scrolls did it, first by removing/combining certain skills (IE: Spears, Medium Armor, Short Blade) and then scrapping Stats altogether for only their derived statistics (Health, Magic, and Stamina)
Dragon Age did it when it claimed to be a spiritual successor to games like Baldur's Gate that had classes, subclasses, specialty classes, multiclasses, and dual classes, and DA:O only had Warrior/Mage/Rogue... seriously?
I want developers to quit dumbing things down for the sake of "balance" or "streamlining" and give me a very complex game that actually lets me see what my stats are and how I am impacting them. I get that not every demographic wants to "do math" to figure out what the best build is, or best item upgrade, etc. but I think that leaves the rest of us who want a complex deep game with lots of freedom to customize left in the dust.