I did a run of very simple, dry, balanced, IPA's a few years ago and dry hopped each with something else. I was not a fan of the Northern Brewer one. My notes are not accessible right now, but I do remember that one was very strong and punch-in-the-face type of experience.
I've dry hopped a number of English-style beers with either Fuggles or EKG. 0.5oz per 5 gallons for low gravity English bitters works well.