I included seasons and eras to account for differential benefits of seasonal buffs. Also, the reason that I went back in time is that some are saying that a specific class is currently the worst and has been that way for years. This post hopefully will dispel that misconception. Sone classes that are underperforming currently have been mediocre/average in the past 2 years. Other classes have spent much more time at the bottom than the current underperforming classes.