Bloodthirst is a definite highlight of the early Corpsegrinder era. That album is very catchy and one of my favorites. Torture is probably my favorite of the more recent stuff. Other ones I'd recommend are The Wretched Spawn, Kill, A Skeletal Domain, and the last one Violence Unimagined. I thought the addition of Erik Rutan breathed new life into the band, and Violence Unimagined was a solid effort. Haven't listened to the new one yet, hopefully I will get to it today. They really are a pretty consistent band though. Evisceration Plague is probably my least favorite of the Corpsegrinder era, and it is still very good.
For SFU, I thought Maximum Violence was okay, but I'm not really much into them. The newer stuff is terrible. Barnes sounds terrible now.