Well, I mentioned it briefly before, but Superjail has pretty great animation from season 2 onward. It's a shame the show really doesn't have much to offer beyond the visuals, though. What blows me away about Superjail is that all of the seasons but the first one were animated domestically in Adobe Flash. Yes, that's how good Flash can look when people use it for actual frame-by-frame animation instead of just abusing the bone tool. If you don't know what bones are in Flash, google it, but the bone tool is basically what gives the program its reputation for laziness.
I'm not entirely sure why SU couldn't have just done the same thing. As it stands, SU is partially animated in the States and finish in South Korea, which is expensive and takes jobs away from American animators. Yeah, I really don't know why people, particularly artists, have such a hard-on for SU- ever since syndication, it's been burdened by an unending string of bad decisions. Bad airing schedule, bad animation process, bad art style change, bad management of boarders, etc.