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i only have waffa of the three brands you mentioned but imo they're excellent and worth the money, plus quick and easy returns and the classics guarantee so you'll def find the size that works best for you, and helpful customer service/advice in the shop and online (in the form of jess!). the only problem i've ever had with the bibs is i have a lot of junk and mine were a hand-me-down so i couldn't exchange for the next size up. apart from that, I fully recommended them, love doing long rides in them, they're faultless! (disclaimer give em a shot and see how they work out for you)
I didn't know about the classics guarantee - thanks for that! Worth a test.