which one is best

Solution
Well take it this way, will you prefer a Sony Bravia or a Sansui? I'd go with Bravia, and therefore those brands which I suggested, they're the top manufacturers of AMD GPUs, reliable and very good at customer support.
I have literally had a powercolors molding melt on a GPU before, spend 10 to 20 dollars more, and only buy from brands with a solid reputation, TBH that wasn't the first problem I had trying to save money buying from budget companies.