The long version can be found here:
http://www.tomshardware.com/reviews/power-supply-psu-brands,3762.htmlShortly put, there's roughly four types of PSU makers: Those who design and build their products, those who let others build what they design, those who build what others have designed and those who add their sticker on a blank PSU. Note that good PSU's can be found in
all of the four groups. Finding crap in the first group is very rare, they can't blame anyone else if they fail. The worst products can be found in the fourth group, but that's not a rule. Many well known reputable brands sell PSU's under their name while the product actually is a SeaSonic. There may be small differences or they may as well be identical to the maker's own label. The worst option is a fancy pompous name built by whoever has made the lowest bid.
FSP (Fortron Group) is a long time manufacturer who mostly build for others but also sell under their own brand. Their products have been known to be quite reliable, several years ago they had the least reclamations in France if I remember right.
There's no reason to have AH2 and AH3 on separate disks. By default they install even in the same folder, C:\HiTech Creations - where they
must have their own separate sub-folders.