I'm seriously considering going.
Altar and Warzone would be my choice, as I like jumping around.
Sludgey death/ Black metal= no thanks
Definitely Sunday at the Altar is the best. Carcass + Destruction + Demilich. **** yes.
Katatonia are so dull live. Ditto Therion. Though I wouldn't mind seeing Septic Flesh.
Every day in the Temple looks awesome. Nothing sludgey there though. It's all Viking/black/folk metal. Awesome. If you like jumping around, In Extremo should be a riot.