Ranked in these QuestionsQuestion Ranking
Pro Has an intuitive, top-down way of discovering content
Comparisons are categorized and subcategorized.
Pro For new comparisons, Diffen takes data from Wikipedia
this is usually a pretty effective way to gather comparison data
Pro Formats queries like "X" vs "Y"
Which allows search engines to find the page for quick comparisons
Con Can only compare two things at once
limits the ability to make informed decisions about choosing which product / service to pick