A lot of the raw materials that are used in supplements today are mass produced and sold to many of the leading companies in bulk. Saying one supp is bad while saying another is better is a moot point because it may come down to having the primary ingredients coming from the same source.
Actually, a lot of supps company, the only control they have are the ratios of the products and the taste. This is why a lot of companies make sure they promote the great taste their product promises because often it is the only way to distinguish themselves from their competitors.
Let's face it, there are some terrible tasting products out there and without a superior taste, most people don't want to use it.