Not
Aurora because even though it's a nice name, it doesn't sound good.
I had a fling with the name
Alethea when I was pregnant with my daughter. But its pronunciation is too ambiguous, and the nickname was either
Allie (yawn) or Lethe (forgetting) or
Thea, and none of those appeal to me.
So I'm going with
Aurelia. It sounds fairly pretty (although I agree with Wordsmith, prone to garbling) and is less fancy spoken aloud than it looks - o-REH-lya. And easily nicknames to something cool - Relie or Rey.
- mirfak