All your suggestions mostly Antec PSU only, Any reason? It's better then all.,
It depends on the star rating and years of warranty.
Before I used to refer Corsair PSU's but nowadays TX Series is not readily available where as RMx series are overpriced even for lower PSU's.
Even I used to refer Seasonic but now their latest Focus Series are not available in India but still S12II and M12II Series are still sold in Amazon and overclockerzone sites.
Seasonic RMA and Corsair RMA are the best. They immediately give sealed units as replacements upon verification of the faulty ones.
PS: Sometimes it also concerned with the locations as well.
I normally raise a ticket with either of them before hand and get confirmation before sending the respective PSU's for RMA.
Same is the case with Antec PSU's.
Cooler Master is previously dealt by Acro Engineering but now I think Regeneresis deals with RMA.
Regenerisis is also very good in providing RMA. Since it provides for Cooler Master, Asus, Gigabyte etc
But I dont suggest Cooler Master PSU's. They are usually rebranded Seasonic but lately I dont know about them.