Will you be adding the new Seasonic Prime PSUs to the list?
When I was looking I came to the opinion of thinking that the Prime' are probably the best on the market right now, massively expensive but IMO worth it.
And lack of any fan noise at high load would be sign to get worried about PSU's long term reliability/survival chances.All PSUs have some level of fan noise when under load that is nearing the PSU max rating
The way to tell is a corsair psu was the old seasonic made units the part code on the box is cmpsu-ax750uk if it is the new part code format cp-9020000-gb then they are made by their newer oem partner (mostly cwt)