Still, Bungie knows how to pull off a decent ending. The dropped the ball with Halo 2, but Halos 1, 3, and Reach all had excellent endings.
In Skyrim, Alduin dies a slightly more spectacular death than a normal dragon, you have a couple generic conversations, and its over. The final battle is even easier than the previous one because you have three unkillable companions at your side.
Fallout 3: You become mostly dead after activating the Purifier. Ending is a slideshow outlining your moral outlook and recapping everything you did.
Oblivion: You watch from the sidelines as Martin summons Akatosh and saves the world.
Morrowind: Dagoth Ur yells at you a lot, you run out of the Heart chamber, and Azura gives a final short speech.
All of those endings svck. Bethesda cannot write a decent story to save their lives. Simple as that.
I agree that Halo has great endings (I'm somewhat a halo really devoted fan

)
What I was trying to say was that the MQ isn't the crown jewel of Bethesda games, its the massive enviroment that makes it so famous. That and the extraordinary number of quests and activities to do. You're given alot of freedom indeed.
By the way, I quite liked the fallout story, I really connected with the father of the story and felt very sad indeed when I'd been chasing him for so long only to find what the enclave did to him... Thats why I liked the ending quite alot, because I felt that the father's death did not go in vain, and even if he failed I compleated it for him. I'm also a big svck up for grey-morality in video games, so I felt the slideshow was a good ending too, because it showed the consequences and benefits to you're actions.
EDIT: that's intreasting, they automatically replaced the word I wanted to use with it's meaning, "really devoted fan". Guess the word I wanted to use could easilly start flame wars.