I think we have hit DBZ level. By that I mean we have reached a point where accurate assesments of level are next to impossible except when compared to each other. You can ask is Naruto/Sasuke stronger than X, but trying to much else seems pointless.
DBZ quantified it for a while then ditched it once SSJ came in. Then it was just a bunch if "relative" comparisons amoing the relevant heros and villain of the day.
As Abridged!Vegeta said, "POWER LEVELS ARE BULLSH*T."