This is a curiosity poll.
Which addon should win this poll. Vote for your favorite for what was most memorable, best, most functional, best at getting blizzards attention or anything you want.
Do NOT create posts flaming any of these addons for reasons well known by others already. Posts as such will be reported.
Addon of WOTLK:
Gearscore: An addon that calculates a score, based off of item level, for a player's gear.
AVR/E: An addon that was around during icecrown that showed ingame graphics for positioning around boss mechanics that was broken by blizzard because it was against their vision (in a nutshell).
Vote for the addon of WOTLK!