Suffocation is one of my favorite bands to see live. Perfect musicianship, and a lot of fun. They're playing 2 brand new songs on this tour too.
Immolation is one of those death metal bands with a lot of dissonance / weird sound but they do what they do amazingly well and I enjoyed their set a lot too. Haven't seen them in like 5 years and they played a totally different set this time, good stuff.
Skinless sucked, in my opinion. They were constantly demanding circle pits and even made the crowd do a Wall Of Death (only about 10-15 people actually did while the rest stood there looking pissed off). Vocals were really obnoxious too.