Now why the heck does everyone keep comparing TES to FO3?? Because they're both developed and produced by the same company?

@xande010: What makes TES games so unique from other games since rpg were created, is the fan base lore. Fans like yourself have actually created TES lore all over the internet. Some of it is so good, that it actually fools people into thinking it's actual canon (aka events that have actually occurred in TES universe). This is in addition to lore the devs create in the game in the form of quests, books, and legends/rumors.
This fan base dynamic is what makes TES so unique. Fan base speculation keeps the storyline fresh and immersive, the game play interesting, and the fan base stimulated. Thanks to the creative license Bethesda has given the fan base, this speculation also creates a base for creative what- if type scenarios once CK comes out. This is where I'll be getting all my replay value in the game.

But this dynamic also comes at the expense of reality---the lore doesn't become fact until the next TES installation. Your Oblivion character's superhuman acts of closing the Oblivion gates and saving Tamriel didn't become actual reality until TES V in Skyrim. And that is when we learned of another fact--the Great War---which triggered to the Stormcloak rebellion. Even then, you still have to be cautious about what you've read about actual events like these, because the source may not be entirely objective….
For example it's a fact (ie TES canon) that the Snow Elven King was killed in the Elves first attempted genocide of all mankind in Tamriel. TES canon proves this event happened back in Morrowind. In Bloodmoon, you find the Elven King's remains as part of the Snow Elf quest in Solstheim. The outcome of this quest seems to canonize the TES lore in the book about the Fall of the Snow Prince. But the actual details of how he died is still a mystery (aka TES lore). The Nord account in the Fall of the Snow Prince has a very biased view of the Battle of the Moesring. Especially if you consider that it claims a mere 8 stone (112lb) 12 year old girl ran him through with a 14 stone (196 lb) spear
Same thing for the present day debate in Skyrim about whether Stormcloaks or Empire is the better choice for the survival of mankind. Which is the more ethical choice is completely irrelevant until TES VI. That's when we'll learn what the actual outcome of our hero's actions was in Skyrim.
The actual outcome of Skyrim's---and mankind's---has most likely been written in the Elder Scrolls already (aka where the devs decide to take the TES universe next). So it really doesn't matter if your Dark Elf character thinks All Nords/ Ulfric/the Stormcloaks the biggest racists in Tamriel and elopes to join the Empire. Even if the Empire wins in your version of Skyrim, the devs may have a completeley different--most likely twisted---outcome in TES VI. They did this with events like the Great War between Oblivion and Skyrim after all. Hell, the Sload might be at the top of the food pyramid ruling the TES universe come TES VI.
Their new empire might come complete complete with a legion of loyal Altmer slaves. So until then, just remember TES lore is nothing but speculation…..