Coolest and most fun one I've ran into to date is the Lurker Below in Serpentshrine Caverns.
The boss has a unique design (as far as I'm concerned - don't ever remember seeing his model before) as well as one of the more unique ways to start his event - you have to fish him up.
There's a patch of glowing water surrounded by a circular wooden platform called a Strange Pool and once the raid is ready, everyone needs to fish in it to "catch" the boss.
Once you've caught him the fight itself isn't too exceptional - one of the easier 25m bosses in my XP - but I still like him just for the uniqueness and neatness factor.
What's your vote - who, where and why?



