I like Pojo's idea as well! I think content wise, Pojo's event would be more entertaining to play.. But like Ranger said, if players want to compete against everyone and do something that takes skill, lavaman's event would be the way to go since it isn't team orientated.
I also really think this thread is a good example of why it would make sense to have an Event Development team, but I think Thor wasn't too down with the idea. Classic isn't exactly huge, but it doesn't really have too big of a dev team. With Developers working on quests, the story line and other miscellaneous things like the card game, it seems fitting to have a small team dedicated to creating new events with player's suggestions/ideas in mind, and working on holiday events as well.