In all honesty, threads like this usually end up being split pretty evenly. There are diehard Stormcloaks, and staunch defenders of the Empire. Theres also a few people who say "why not create two characters and try both?"
Personally, I am going for the Stormcloaks first, even as a Dunmer. Ulfric's conversation with Galmar when you first enter the Palace of the Kings is very stirring. Plus, I despise the Thalmor. Tullius, well I just dont have much to say about him. I don't like him, I don't dislike him. I'm just indifferent to him. I'll get arond to doing the questline from the Imperial side, though.