My favorite IPA is Fat Head's Head Hunter IPA from North Olmstead, OH. It's borderline between an American IPA & Imperial IPA...right at 7.4% ABV & mid-80's in terms of IBUs. They use a combo of Simcoe, Columbus, & Cascade hops.
It's quite bitter without going overboard, balanced perfectly against a subtle maltiness. The best part is the citrus/pine aroma. It's the best smelling IPA I've ever had...& I've been to Russian River & Firestone-Walker who both have a wide variety of great pales & IPAs.
I'm brewing my 2nd IPA next weekend & hoping to come in around 7.6% ABV & 86 IBUs. It's not really an attempt at a clone, since I'll be using Simcoe, Amarillo, Centennial, & Chinook hops. I'd like it to turn out a little more piney & slightly less citrusy.