Desalvo: i'm using PSA power cords and can also give them a big thumbs up. got 2 ac-10's and 3 ac-5 along with 1 ac-3. can't say i tried anything else as my man Ron at liquid hi-fi recommended them to me when i went to upgrade oem pc's. there was an odvious improvement in sound from day one over oem cords. even more obvious after break in.
use the ac-10's for my quintete and ml 432 amp. ac-5's power my perfect wave dac, transport and pass x1 preamp. ac-3 for my dd-12 sub.
can't comment on what sound better regarding other aftermarket pc's but can tell you the ac-5 sounds great with my pass x1 pre. it's the only aftermarket pc i've had used but have no desire to look further. everything sounds just right as is.
btw....drop Ron a line if don't want to spend anything close to $600 for the ac-10's or other psa cords. he'll help you out. (in no way affiliated, just a happy long term customer).
cheers
Lev