Uriel Septim VII had a history of just rule, and brought prosperity to the provinces even after Jager Tharns coup. Meeting the Emperor, he spoke very humbly of his position as a ruler, to a prisoner he barely knew! And we all know the story of Martin, a priest turned Emperor and hero to an entire continent.
To me, the Empire represents the best of society on Tamriel; civilized, ordered, and still cosmopolitan, recognizing the importance of other national cultures, such as in Morrowind. The Empire was not without flaws of course, I admit that. But I will miss the Empire in Skyrim, and if there are sides to be taken, I will fight to bring it back.
What about you?