I like the idea, but implementation may be a pain. There's a number of Europeans (Germans for sure) who play, as well as North Americans, so you're looking at trying to coordinate over a 9 hour time difference. I'm not sure how you avoid a situation where the winner isn't simply the person who has the most available free time during that particular period of the day.
Hoping to win with every class, doomed. Archer, Barbarian, Bard, Beastfighter, Druid, Elementalist, Farmer, Fighter, Monk, and ULE Priest down.