Mark:
How can you compare using the term "overal treatment/experience" but while "neglecting seat size and pitch"? Isn't the seat, along with service, food/wine, amenities, all part of the overall experience? Taking one out you no longer have an "overall experience."
Second, I have been on several Asian airline's economy seats (although not in SQ) and I still maintain that the overall experience is still not as good as domestic US first class.
You are trying to equate economy deluxe to economy and I do not think that is a fair comparison.