Well the MSI Sea Hawk uses almost the exact same components for cooling (pump+rad Asetek OEM) BUT if I recall correctly the fan on the msi version is controlled by temp/load of the gpu, like it would be normally. On the EVGA Hybrid though I noticed no change in fan speed whatsoever under all conditions. So it stays basically at 100% duty all the time I guess that's why it obviously wins the crown when it comes down to cooling performance.
But to be perfectly honest it's now the loudest part in my system and with the lack of sound dampening material it transfers a noticable amount of vibration to the cassis aswell. I'd rather have a more silent solution with variable fan speed and sacrifice a couple of degrees. Just a heads up for the next version of the cooler.
Oh and ofc I talk about the 120mm fan attached to the rad not the blower style fan on the gpu. That one is still temp controlled. Not ideal though, cuz the them of the gpu obviously won't rise as much with water cooling therefore the little blower style cooler won't even start to really spin up why the vrms that it's supposed to cool don't get enough air flow. You really have to set up a custom fan profile for the card. Should have gotten a individual fan curve in the bios of the card right away.