Your favorite SAO/GGO character?

What is your favorite character from Sword Art Online Seasons 1 and 2? As of now, I'm kind of rewatching the series due to my idea thread and for collecting information, I'll most likely continue with GGO as well.

My personal favorite character would have to be a tie between Agil and Klein - they are the only non-cliché characters that were interesting. Kirito doesn't really have anything special, Asuna is Kirito's Waifu, Kayaba/Heathcliff is a great character, but little is known about him or his background. Lisbeth isn't really compelling, while characters such as Argo or Sachi don't really have too much of a background in the anime. In terms of GGO, I didn't really like any of the characters. Sure, Sinon is probably pretty damn cool, but her behavior sickens me. Heck, I don't even remember almost any of the characters from 2nd season.