CD, when you talk about liquid mix, I follow you... It's the same interface for everything, just some lill differences depending on the original specs.. As a matter of fact, a compressor is about treshold, attack, release, and so on... eqs is the same, frequencie, gain, Q... most of them sound different in the tone like guitars amps and everything else... It's a matter of taste... Why do you use a fender a gibson or a ibanez.. it's the tone.
why you like roland, yamaha, korg, kwrzveil, whatever?.. it's the tone, all of them are great.