blotunga: To be fair, the pre-Baldur's Gate D&D games were ... to put it mildly... not the best games out there...
What? The Gold Box series was amazing, and were actually more "open" than the Baldur's Gate series in which you created 1 character at the beginning (not a party), and you could only pick up pre-set companions, and followed a pretty much linear story. Gold Box games were more open-ended, and the combat was more tactical.
Ravenloft 1/2 and Menzobarrenzan weren't great, but OK, Eye of the Beholder series with the exception of 3 were great if a little simple and clicky.
The only outright "bad" pre-BG D&D games would probably be Descent to Undermountain, the "Silver Box" arcadey games (which were horrible) and Hillsfar.