Someone commented that Emperial IPA is the Ruination of Ruination. I completely agree; it's in a whole new category of bitter and awesome. I have a 6 pack of Ruination in the fridge, but I went and got 6 more bottles of the Emperial.
I like microbrewery IPA's much more than the mainstream fare. In BC, there are a couple that come to mind: Red Racer IPA is amazing, and also Granville Island's Brockton IPA is very good too. I was not impressed with Hophead IPA; I found it to be very watery, flat beer.