its a good idea in theory my friend but i think a bit difficult to come up with just one standard with so many different machine types at the moment all working differently.
Need a single card Nvidia system standard Low/Med/High
Need a single card AMD/ATI system standard Low/Med/High
Dual Card SLI standard Low/Med/High
Dual Card Crossfire standard Low/Med/High
For instance My game performance has fallen more than improved with the patches it seems but those same patches have improved others with non crossfire setups so though your standard is much improved mine is not.
It is a good idea though to give us all some sort of benchmark for each type of setup but I think it will need to be specific to at least those four main groups otherwise you will have people like me that have what should be a higher end system (or at least Med/High for this game
and yet still can not even come close to the same performance as you can