I've never had TransGo stuff work nearly as well as the Superior stuff. The TransGo stuff has a horrible line pressure rise curve, in both the 700-R4 and 200-4R transmissions, and the various derivatives. Some of the TransGo stuff was so bad that even customers who demanded it asked that it be removed, even when it required replacing the valve body.
The Superior stuff has a much better line pressure rise curve. The Fairbanks stuff works well, but is sometimes a little harsh for some.