I agree. They were probably fashionable at the time, but you have to wonder who first designed those dresses, and what they were smoking at the time.
Though not sleeveless, the absolute worst has to be the red one with the blue trim. It looked like she was wearing a one-size-fits-all red tent - there was no shape to it whatsoever.
It's close to being the worse but the true worse dress in the whole show belongs to Liz! It's a red knit with huge knob-like, gold-toned buttons, two rows of them running from the shoulder to the hem-line. UGH!