It's a page from the UESP that outlines all the past and present races of Man, Mer and Beast in Elder Scrolls lore.
Here's my thoughts on races:
Favorite Race: Dunmer
Least Favorite Race: Bosmer
General Thoughts: I'd like to see all the races in question three added in future Elder Scrolls games, especially the Kothringi, Falmer and Maormer. Those three races seem really unique and cool to me. In terms of playability, I want all of them to be playable except the Sload and the Akaviri races. Although the Sload seem interesting, I think they'd be totally lame to play as. Just look at their http://images.uesp.net//9/91/Sload_big.jpg... Nobody's gonna want to play as that thing. My vision/prediction for the Elder Scrolls V is either a main questline that involves an Akaviri invasion of Skyrim or a Shivering Isles-esque expansion that lets the player travel to Akavir. I'd like to see the Akaviri races, but I don't think the player should be able to play as them. My answer to the fourth question is yes, I'd like to see mixed races. I know it would be hard to implement, but it would be really cool and would add a lot to the role playing aspect of the game. My main role play character has a Breton father and a Dunmer mother.
And finally, I didn't get to ask this in the polls because it only lets you have five questions, but are there any races you'd like to see removed from the playable list in future Elder Scrolls games?