Being a huge grind fan I may be a bit biased, but I do think that most bands in the genre are far better live. Wormrot is a good example, I enjoy their records but was blown away by them live.
1/11 - EyeHateGod/Cattle Decapitation
1/28 - Toxic Holocaust/Exhumed/Mammoth Grinder
3/24 - Carcass
3/30 - Carcass
4/2 - Carcass