Eh, the most-respected IPA's/DIPA's out there pretty much knock it out of the park in terms of flavor. It's incredible what Bells pulls off with Hopslam, really.
Barleywine is a tricky style. It runs sort of a wide spectrum. Get too hoppy, and some people start saying "this is a DIPA!" Get too malty and sweet, and people start saying "This is an Old Ale!" For me, it just means a big beer that hits hard on both ends of the flavor spectrum. Then again, fresh Bigfoot is skewed toward the hoppy side, yet I still love the beer. It's just too damn tasty. I'd love to try one with 5-10 years on it.