They all do the basic job of reducing resonance frequency
However we only use Dynamat on the ceiling, as lesser brands will eventually fall off, seen it many times, Dynamat sticks so much better and will not come off, it also comes in much larger sheets, which again is better suited for audio installs.
We do also use Skinz (black in colour) which comes in twice the sheet size of Silent coat, and I can do these in bulk packs at a very competitive price