The answer is not always as clear cut as it may seem. In the world of stocks the advice is “go with the best of breed”. That is to say that the company that performs best will continue to offer the best performance. Logically, this seems to hold true with affiliate marketing. The companies that offer perceived best value and perceived best brand will tend to out perform a no name brand almost all of the time, even if the no-name store pays 2-3 times the commission.

However, when playing with products that can be purchased at many stores, one always has to be aware that people will price compare and look for the best deal. The bottom line is test / restest and don’t hold on to a single advertiser because it’s your favorite place to shop.