be quiet!, Phanteks or Fractal Design, which case is the quietest?

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Aug 1, 2017
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I want to build a quiet PC. I can either buy be quiet! SILENT BASE 600, Fractal Design DEFINE C or a case from Phanteks (haven't decide on what case to buy from them). I need help deciding. I won't be doing any water cooling, only have 2 SSDs and my GPU is fan-based and not hybrid.
 
Solution
if you want a quiet PC , buy a cosmos II case , with a high wattage psu , the higher the wattage the more quiet it is .. then install a passive massive heatsink on your cpu