This is from my memory of who was the best, not of who actually is.
Knight is Arthor - Mage is Loric - Sorcerer is Panaideos - Thief is Sturge - Loremaster is Zenichiro - Bard is Babidi - Ranger is Blueskull - Seer is Flagg
I'm trying to base this on how far someone was above the competition at a set point in time. I think that's the fairest comparison I can give.
Written by my hand on the 7th of Cloudburst, in the year 1144.