The one thing the Bose did with this new series is back way off in the bass department. The AE2 is a fairly smooth headphone but it's major weakness is in the mids. Very recessed. They are VERY comfortable though.
The Klipsch isn't quite as comfortable for long wear, but they are much stronger through the mid range. The bass is pretty overpowering however and does bleed over excessively. If you're a fan of EQ then the Bose can be tweaked into decent sound. You gotta really bring the mids forward. I actually prefer my AE2's over my Image One's. Didn't think I would, but once I found settings for both the Bose are just a smoother headphone.