My apologies for the slow reply.
Favorite character is currently Verin Sedai.
Bayle Domon is a close second.
As for the second question, thats a harder one. Probably one of the Yellow Ajah Aes Sedai. Might as well bring in someone who might be able to cure some stuff.
I'm not terribly great at volunteering information, but questions are always welcome!
I'm on, I think, my fifth reading of the series, though only my second of the final books.