I will offer the countering opinion in that, like saddles and handlebars, shorts are immensely personal; in my experience, cost has no bearing on comfort. My favorite padded bibs are Performance's Elite II. Previously, it was the Ibex bib, but those wore out way too quickly. I pull the pad out of many of my shorts for long riding and here I find Pricepoint's bibs to be wonderful and long-wearing.
^^^ I agree. I have stuff from Pearl, Voler, Pactimo, and Bellwether. On a Brooks saddle, I found that my cheapest bibs, with the cheapest feeling (to the hand) chamois, felt the best. Unfortunately, after 11hrs in the saddle, yesterday, the chamois has finally worn through. They were my first pair of cycling shorts.