1- Lexitheurge - I really like the divine classes that fill the mage/priest role better then clerics, and this is almost about being closer to the divine as equals.
2- Guide - I see this seeing a lot of play.

Honorable Mention- Speaker For the Dead - Like the idea but the lack of spell list makes it unplayable
Honorable Mention- Linguist - Formatting was not complete, and only 2 essences were done.