First and foremost, it's the silk. Most of the silk used for prints is thin, insubstantial dreck. Second, I don't like the majority of the designs, which fall into two camps: cartoony (Hermes, Ferragamo, Vinyard Vines) and "pizza grenade" (too many to name).I am curious as to why you seem not to be fond of prints?
Vanners, I had thought, was the maker who supplies the heavy, dense, dry, tight twill to Marinella and Drakes, among others. Correct me if I am wrong. But even then, for me, heavy silk is not enough to make a print good. Drakes has that 40 and 50 ounce twill that, in the abstract, seems wonderful. But in real life the hand is too soft and the weave too loose. Plus, I don't like the high shine.
The very best prints I have ever seen -- better than Drake or Marinella, generally the only prints I buy or wear -- were in the Flusser shop this year. I assume they were made by Drake, but am not sure. The silk was far better than the average Drake silk, in this case a very sturdy gum twill. And the printing was top of the line, with beautiful designs. The only silk that compares is the silk Bulgari uses, but I don't like their designs.