I bought a Quiet One 1200 pump. It was anything but. And they use o-rings on their threaded barbs in/out. Poor design. I would avoid.
Supreme Mags - noisy until they break in a little, then tolerable but not silent.
Only experience I have with FW pumps.
When I did reef, I used Japanese Iwakis and Little Giants. Both excellent for their purposes.
Yeah, Quiet Ones... not so quiet. I have a QO3000 on the 75 for return and reactor pump. That thing buzzes all night long in my room. It may be a little better if you don't use hard lines like I prefer, but it's still louder than my Rena XP3. I'd recommend them for use outside a bedroom though, great pumps so far.