Morrowind was still the best game in the series, Oblivion was fine, while all stories were shit they at least weren't *Walks in the door*, *Random guy comes up to you*, "Yeah, you're our new leader, you're so cewl, go keel dis peplez and sav zhe day, wait, did I remember to mention you're the chosen one and you're awesome?"...
And fucking finishing moves make it impossible to play anything else then a fucking tank as 90% of people would just randomly finish move you making any real combat strategies impossible. No unique loot in dungeons, every unique item is in a quest, the item will be level scaled and the plot will be horrible, there will be no real challenge which requires actual fucking thought.
Dragons are boring as shit, magic is dull as shit, melee hasn't gotten any more fun than Morrowinds or Oblivions, stealth is unbelievably retarded, perks are fucking stupid, NPCs got no character, not a single fun quest in the game, the only challenges you'll ever face are ice trolls at level 1 and random enemies insta 1hitting you with nothing you can do to prevent it leaving no space for actual tactics if you decide to play an extremely gimped and weak char for the sake of melee being slightly fun when you're totally underpowered, and sure there are mods which address most of this shit but eh, vanilla is horrible as shit.