Yeah, I finished the Imperial questline in one sitting... But the end was the most disappointing. I was at least expecting some sort of animation when I killed
, but no, I just slashed him and... well that was it. The Whiterun battle was also disappointing, at level 12 I was killing the guys really quickly. Didn't feel like a war really. :/
It didn't help that maybe 10 soldiers are there being congratulated on their victory. Made it seem very comical to me.
I was past level 60 and I honestly felt like my allies were in the way more than anything.
Honestly, the Main Quest is pretty disappointingly short as well. What's bad about both to me is that there aren't many choices to be made. TES games are always this weird sort of sandbox where the sandbox disappears when you do official quests and its a pretty straight and narrow railroad. This aspect has been the same at least as far back as Daggerfall, maybe farther. Anyhow, it could at least be longer and more involved....and feel more like a battle. It feels so weird where you take a fort and then magically the local Jarl changes. It makes me feel rather uninvolved. Of course, the Jarl that is deposed then hates ME in particular, as if they know it was me that was personally responsible rather than...you know...an freaking army.
That said, the civil war has remarkable little collateral damage for a war. Amazingly little.