Only reason I go for Tagan is because the RMA is based in the UK & has a fairly quick turnaround.
Tagan 700w BZ-Series Modular PSU, is the latest PSU they do & is also the mininum wattage they do now although OcUK not got that model in stock which is abit silly, I'm thinking of moving to one of those when I upgrade my PC around June time.
The Corsair have 5 years guarantee, but the RMA is based in California which puts me off as the shipping would be expensive for something as heavy as a PSU.
I think most brands are reliable, theirs always a chance that any PSU can go wrong no matter how good the brand is, just luck of the draw.