Is Quasar's power based on the Power Cosmic?
http://www.quantumzone.org/behind_the_scenes/everything_quantum-bands.html
In any case, Quasar's powers Seem pretty weak compared to silver surfer's based on the info on the page.
Starbands though....
Hmm Isn't the hold of the unipower different each time? If a normal human gets it, is he more powerful than Silver surfer?