Lots of GREAT big beers in this thread!
My three personal favorites have all been mentioned:
STONE - Ruination IPAGreen Flash - West Coast IPABear Republic - Racer 5Any given day you can find at least one of them in my fridge.
Mr P mentioned some other excellent brews:
Goose Island IPADogfish Head 60 minute IPA(I'm keeping an eye out for the others... especially the Three Floyds (I've heard that is exceptional))
Nearly all of the
Bells Beers are excellent as well.
One that hasn't been mentioned that I enjoyed recently is this one:
I've only seen it in the 22oz. bottle.
Trader Joe's (around here at least) carries a couple of IPAs that are pretty good, less expensive and sold by the six-pack:
Mission Street - IPAand
ACME - IPAboth offer a reasonably big taste (not overwhelming) and are a couple of bucks cheaper than almost every other beer mentioned in this thread.