The general gist of most replies here will be that if used within safe operating parameters for the Amps in question, there really should not be a difference in SQ.
Frankly, I don't want ANYTHING in my signal chain that will color the sound.
So if you were to sit in a DBT cycling through any/all of those, you should ideally
not hear anything different, assuming all are level matched and operating within safe parameters.
Depending on your need and speed of purchase... I'd wait for holiday sales.
I got my outlaw Monoblocks for 1500 total for 5, shipped. I'd rather have 5 individual power supplies, than one big honkin box.
YMMV
Though I've seen many reports of happy Emo customers, there is some question about their willingness to stand behind product once the warranty expires. (Just a heads up.)
Cheers!