As the owner of an h100i, I would have to third the vote for the Kraken. The ongoing issues with corsair link, the stupid LED problems that have surfaced with the last firmware, I'm very much kicking myself for getting the h100i. It cools great, doesn't make a lot of noise, but the software from corsair is just HORRID, and the LED issue is VERY annoying.(the led on the pump changes to pink from red on every pc restart, and you have to manually adjust the colors to change it back)
That was supposed to say red to pink.. lol