I wonder if using an article from gamesradar.com which appears to only consult one persons opinion's of superhero origin stories could be biased. If a different website had a similar article written by a different individual, who is to say they would both write that Spiderman's story is the best?
Taking account of factors like the likability of a superhero's origin story is another great way to examine the popularity overall, but seems a bit subjective. Numbers however, seem to be a way to look at this character objectively and obviously the last film that came out shows that Spiderman is the superhero people want to see.