I'm quite excited for Hemdale and Excruciating Terror. Nocturnus A.D. will also be quite a treat.
Sacrifice seems cool - can you recommend something from them?
Asphyx, ATG, Unleashed I've seen before but it would be fun to see them again. God Macabre and Cancer are interesting curiosities.
To be quite honest I don't think I'll be going for all of the days unless they really pull out some stellar bands at the last minute. This lineup is underwhelming. Might just get a ticket for whatever days Hemdale, Nocturnus and ET are playing.