The main difference between the Amazon’s Choice & Best Seller is that the Amazon’s Choice Badge is given to a product that is performing well on a specific keyword, meaning customer search for the keyword and purchase your product, you appear more relevant to the algorithm and ends up receiving the Amazon’s Choice Badge (will only be shown when the customer visits your listing by that keyword), while Best Seller is more based on category so if you have the highest sales in a category and your BSR is #1 you get the Best Seller badge it will be shown to the customer regardless of the keywords, so if we look at both we can say that the Best Seller Badge has more weight to it than the Amazon’s Choice Badge, but getting this one is a bit harder too.
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