I agree. Check out mountain bike shorts. You can find reviews at
mtbr.com, but there are many more that aren't on there. I have a pair of Endura Zyme shorts that I really like, and I've read many favorable reviews for their shorts.
There are many companies that make knickers that aren't form-fitting. The companies I know of are Swobo, Endura, Hypnotic Designs, Chrome Bags, Swrve, Under The Weather, Portland Cyclewear, Pearl Izumi, Zoic, Chicago Wig, Sugoi, and Bicycle Fixation.