I don't really think there's a prime example of a "bad" brand-name racquet in today's market. I use Donnay frames, and I love them, but somebody else might hate them. That can be said for any brand, so there's always going to be somebody who likes a racquet, no matter what you think...
2x Donnay X Orange 99, which is AWESOME BTW
Strung with Gamma Zo Verve 16 at 52lbs