So far Evil seems to be doing the best:
Evil, the level 40 pubstomper. Next level in 3 days, 11:10:01.
Good, the level 39 principle. Next level in 0 days, 00:44:54.
Even though Good just finished a quest:
[2010-06-27 - 08:38:58] <~IdleRPG> Good, cloontje, Siiw, and bah have completed their journey! 25% of their burden is eliminated.
though the difference isn't that big.