That thread is a little out of date with changes for Miles and More (LH/LO/OS) and Airpoints (NZ) and probably others too.
Also many FFPs seem to have so many special rules for particular carriers/fare class/routing that I suspect you'd get quite different results depending on what your sample routing (and carriers) is.
From what I've read here the easiest *G to get seem to be AC, TG and OZ.
Check out
BlondeBomber's *G Comparison Chart. Other useful info links are found at
*A useful reference links