Our Homebrew club (UKG in DuPage county IL) did a single hop experiment a couple months back. Same recipe same water and same IBU's, but different hops by each guy. I had Mosaic and it was well received. The Mandarina and Galaxy were also very good. Surprising how similar many of them were, but then how different a few of them were. Most hops can produce great beers used in moderation (i.e., used in moderation so that you hit your intended IBU's and avoid making a session IPA - unless, of course, that is what you intend).