[HIDDEN=""Show]I disagree with you here. The game is supposed to be good stand-alone. Addons are there to customize and go from good to great.
The problem is, as you enter the final stage of the Dragonborn quests which in-game are reguarded as the main storyline along side the Civil War, nothing unique happens, and it's all brain dead.
I had to use my brain to kill normal dragons, as a close combat character, I had to make them come on the ground. Alduin wouldn't tho, he was just flying around, so I had to use Dragonrend. Okay, but once he is on the ground, he was 3-6 hits dead. He is the main character you want to slay. And he died in 3-6 hits, without anything spectacular coming from him. He barely did any damage to me.
After he dies, you aren't rewarded with much. You are in Valhalla, you see some characters who you encountered earlier, and you can't have any kind of deep interaction with them. I meet Ysgrimmar and he doesn't notice I am using his shield. I meet Koldrak and he doesn't ask anything about the guild, or comment about me as the Guild Master.
The Thieves Guild ending was amazing. You become an agent of Nocturne, you make a pact with her, you are given a full set of thief items (swords, bow, full armor), you become the leader of the Guild, you are given a new daily power to use. Sure, the last fight wasn't that good, but he was just a mortal, a human. And killing him you also need to find a way out and than luck comes into play and saves you. It's dynamic.
The Dragonborn ending isn't dynamic. I had more trouble with regular dragons than with Alduin. I don't feel great that I killed Alduin. It felt like I used all my strength to crush a bug. Dragonrend could have had a longer cooldown, Alduin could have had more health, scripted stuff could have happen especially since the fight was in Valhalla. I mean he feasts on the dead, yet he never releases them to attack you? And the path to Sovengard, is really dull. I really expected a unique looking, with more interesting creatures and puzzles dungeon. Not same old, same old. I mean, on my way to defeat the 'great evil', I see 'same old, same old' areas and mechanics? All they did was spawn a lot of undeads with helmets which takes 3 attacks to kill.
Just that, it really felt immersive breaking, or maybe as not as immersive as other quest chains.
Edit: Still the game overall is great.[/HIDDEN]