I doubt the differences in wpc will even be noticed. And by the way, don't dismiss JBL speakers too quickly. I just replaced Axiom speakers for JBL EC25 center, JBL 4310 side surrounds, JBL E10 back surrounds, and, while Axiom are better, JBL were pretty good, too.

Greg
VP180, M80s, M22s, QS8(4), CSW S305s, EP500, Pioneer VSX-90
M2i, M3(2), Pio vsx-1020