Corsair HX1000i vs RM1000 - which is better?

I'm buying a PSU for my new build, and are deciding between the Corsair HX1000i and RM1000. Which one is better?

My priorities:

  1. Silence (under what load it can run passive and how audible coil whine it has when the fan does not spin)
  2. Noise level when the fan is spinning
  3. Performance

The price difference is insignificant. I don't care about Corsair Link. I'm planning on having the system a couple of years.
 
Thanks!

HX1000i will be better since it has better internals. I've heard some pretty terrible things about the RM series. Hence the reason why I went with a Seasonic X-850 as opposed to a corsair RM850

 

BTW! What are your reasons for getting a 1000w PSU? Do you need it? Or is it just personal preference? I got my Seasonic X-850 850w PSU for only $76. Just to give you an idea of how much you're spending on a PSU.