I like the OP question about balance among races
I was thinking about this for a while
There is a big poll avaible
http://tesocensus.info/?results
It looks that while most races are equally popular , few are not so lucky
As a general rule - beast races are less popular in every Alliance
So -in Ebonheart most are going to play as Dunmers (Morrowind fans) and Nords (Skyrim fans)
In Aldmeri Dominion - its more or less equall (but i think this is a result of synergy of Khajit racial skills with Nightbalde class)
But finaly -we have a Daggerfall Convenant. And guess what?
Most are going to play as Bretons (or Imperials)
Why?
Well - orcs are ugly, and redguards are umm, you know...