For bibs - definitely the Bumkins bibs. They are a little more expensive, but they are worth it. They don't stain, you just wash them off with a sponge & dish soap, or in the dishwasher, or even washing machine. Whatever material it is made out of, after you wash it off after a meal & put it somewhere to dry, it's ready by the next meal. I even ended up with one down in the garbage disposal, and it only suffered one small hole. And it has a pocket to catch most of the crumbs...
For high chairs, I don't think it matters, except try to make sure it's something easy to clean. The ones I got had vinyl seats, so I thought they'd be easy to clean, but there is a fabric edging that gets all messy, lots of creases & crevices for crumbs to collect... Try to imagine a few months from now when your child's hands are covered in cottage cheese or spaghetti sauce & they are touching all parts of the chair... I, too, have put away the high chairs & gone with booster seats right at the table. They're just the $25ish Fischer Price seats, and everyone that I know that has them loves them. We use them at home & everywhere we travel.