Ok - so domestically, that's fair, though you never specified domestically, and we're discussing the PL vs its European rivals, are we not?
The question is - does the massive monetary amounts in the PL vs La Liga and the Bundesliga make it a superior league by default? I believe that's what you're alluding to, or at least that the money involved plays a part in this, because you seem to feel like European games and such are irrelevant to the equation.
It's also very, very convenient that you're excluding the current season. I wonder what that chart would look like?