Actually once you factor in the noise level, it's debatable whether the Antec Kuhler 920 is indeed better than Corsair H70. Afterall, we're talking about 55db for Kuhler 920 in extreme setting vs. 31.5db for H70 in normal setting. For over 20db difference in noise level which is HUGE, we saved another 5 degree. Moreover, not sure if I see the point of going watercool if I still have to live with 50db+ noise. Reminds me of good old air cool days w/ 3500rpm delta cranking out crazy noise...
I do dig the software on the Antec though. Corsair is definitely falling short in this regard.