On the one hand, I sympathize with the Stormcloaks over the religious shit (the concordant banned Talos worship). I mean, the gods actually exist in this world so that's kinda fucked up.
On the other, once I got to Windhelm, I kinda didn't care about that anymore.
"Shit, maybe Talos is the reason these dudes are so racist... They only like him cuz he's a human. And a Nord."
Its rumored the aldmeri dominion tries to keep the war going. Both sides are mostly made up of nords from Skyrim. The civil war helps keep the empire weak while also pitting a group known to hate elves against each other. Many stormcloaks would glady fight along with imperials if they were spilling high elf blood.
There's a dossier on Ulfric in the Thalmor Embassy that straight up calls him an asset, though a currently dormant and uncooperative one. It also says that keeping the civil war going is exactly their goal and that him being executed at Helgen would have harmed their position
Honestly, it was that dossier that convinced me to side with the empire... Not because I liked them more but because I thought them winning would be the worst outcome for the Thalmor and the best chance of being able to resist them (either side winning was bad for them, but a rapid end to the war by the empire would allow Skyrim to recover with imperial resources and not become isolationists... I didn't see a Stormcloak lead Skyrim wanting to work with the empire for mutual gain for a long while)
But I did also assassinate the emperor, so I was kind of sending mixed messages on my loyalties...
And also Talos died and ascended to godhood a long time ago, so he isn't around in person to cast holy smite upon any of the dipshits preaching war crimes in his name.
Unless you prefer the other version of events presented in the game, in which case Talos was not a nord but instead a breton
I choose this version mostly because it is funnier, but if the in-game book that discusses it (the Arcturian Heresy) was written by who it says it was written by then it's probably the truth