Sasami doesn't really have the elegant princess aura, though. She's more of a happy loli than an elegant princess.
The moe factor isn't limited to lolis. I'd say that Ayeka is more moe than Sasami, on top of being hot.
Ayeka is a sweetheart towards Tenchi once she realizes that he's not all buddy buddy with Ryoko, and she's damn cute in the process.