Backwards PLT,
I agree completely with most of what you say, but would just add this. Turn performance isn't just for a turning fight. The use of high energy manoeuvre at range costs incoming missiles a huge amount of energy and is, therefore, an important feature for air superiority/dominance fighters. Its benefit at closer range is obvious.
I understand your reticence in joining the debate, given the narrow scope of the question (which is still a valid one for interest). Perhaps it's time for another, all encompassing air-to-air tactics and hardware debate.