Elder Scrolls is literally the least "fash" fantasy out there. Yes, I am a huge fucking nerd, no I am not white, I'll see you in the comments mother fucker, I KNOW THE LORE! FIGHT ME!
Elder Scrolls is literally the least "fash" fantasy out there. Yes, I am a huge fucking nerd, no I am not white, I'll see you in the comments mother fucker, I KNOW THE LORE! FIGHT ME!
I'm assuming by "main character" you mean player character. If not that complicates it a hundredfold.
Probably the Oblivion main character, but only post-Shivering Isles once they mantle Sheogorath. Mantling is the process by which one may become another by performing certain acts and/or feats and essentially gaining that person's powers, visage and personality.
Base-game it's probably the Dragonborn due to their access to the Voice and their connection to Akatosh, Dragon-God of Time. During the main story, they're even able to go back in time via the use of an Elder Scroll which they're able to read without training or going blind (permanently anyway). They're probably the most Divine Driven of the heroes.
1-3 are just kinda Imperial agents and such, sent on a mission to complete. Though TES III is kind of complicated where your mission is to attempt to fulfill a prophecy, so you're kind of an agent but also kind of the reborn soul of a long-lost hero destined to save Morrowind, whether you're actually the hero or just someone who managed to fulfill the criteria is left up to the player to decide. Though the Nerevarine did also kill a god but her powers were waning anyway, as were their other potential godly victim. Dagoth Ur is also another self-proclaimed god so I guess you kill three throughout the course of the whole game and expansions.
Is Alduin>Sheogorath? If so couldn't you make the claim that since LDB>Alduin, then LDB>Sheogorath?
Alduin was prophecised to be destroyed by the Last Dragonborn and sent by Akatosh for this purpose. Alduin failed in his duty of ending the world and bringing in the new one and so this is his punishment. He doesn't even technically die in Skyrim, merely defeated, as he is the only Dragon you kill whose soul you do not absorb.
The LDB is kind of tailor-made to destroy Alduin, the same can't be said for Daedric Princes. Even in ESO when you "kill" Molag Bal with the power of both Meridia and Akatosh he is still alive but merely diminished in power for a time. Even the lesser Daedra don't seem to truly die but instead return to the Chaotic Creatia where they are reshaped or reformed.
In Bloodmoon, Hircine doesn't even let you fight his true form in the name of fairness. You only fight an aspect of your choosing and even then they're one of the strongest entities in the game.
Here's an example of the Oblivion MC attacking Sheogorath in their own realm as well.