... one person, and one album at a time.
Alan at Blogonomicon has wide-ranging musical tastes, but he only just now started to explore Iron Maiden's broader musical corpus with his acquisition of Seventh Son of a Seventh Son. I wish him happy listening, and I hope he might check out more from Maiden in the future.
Oh, and if you've never given the band a chance yourself, think about it. You just might be surprised at what you've been missing since the early 1980s.