My first Elder Scroll Character was an Argonian in Oblivion. I had much fun with it, but I found it more fun to be an Imperial and played as an Imperial for many years, but later I found out that The Dunmer was fun to play and they kind of became my main race

In Skyrim my first character was a Nord, and Since I'm Norwegian I had to be the one race that resembles myself the most

After that I played a a Dunmer. Now I play as the race I see as the most fitting to what kind of character I'm going to play

I have an Altmer mage who is a student of the College of Winterhold, a Nord Warrior/Werewolf, a Dunmer thief/assassin and Now I'm mostly playing as a Breton warrior/mage who will eventualli become a vampire (in Dawnguard ;D)
I don't like to play as a beast race much, I have made an Argonian rouge character and a Khajiit thief, but I didn't play with them for more than 5 hours each. I just didn't think it was as much fun ''/ But I'll guess I'll try to play them again later some time

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Sorry for long post (=