Far as I know, they all use the same foam. Just go with which ever has a decent price and is the company you trust more. Personally I like Moss, as any time I've had issues they correct them promptly, where others did not. Other people have had the exact opposite experience. I've never had any issues with Rimmer Bros or Mini Mania either, but I've not ordered nearly the same volume in parts as I have with Moss, TRF, or VickyBrit.