ss multi-ch. amps vs multi seperate amps any adv.

Best to do mono blocks. Cleaner sound, more flexibility.

In general the multi channel amps I am familiar with are not to the same standard as 2 channel or mono ones. They are designed to a different market that is perceived to have different priorities; there is no inherent reason that this should be so but it is. You will find that amps with the same power rating can be very different in sound. The fact that you assume all similar rated ones sound the same shows why multi channel ones usually don't sound as good, in this segment of the market power output and features rule with sound quality not being emphasized.

Monoblocks are usually not the best answer in practical applications.

Unless you have a dedicated 20 or 30 amp circuit in your power box, you will short out your 15 amp breaker with 5-7 monoblocks + tv + etc etc.