Bibs are like any other piece of clothing. The more you spend, generally, the better the quality, fit, and longevity. It really comes down to personal preference since some brands are longer in the legs, have more padding, etc. I have Pearls, Giordana, Castelli, and even an Assos (way too expensive, but sooo nice) and each one fits a little different. You really need to try and see.