My experience has been very mixed, - when I was premier, Prem Exec, or even now as 1K. The treatment I received has been mixed through out - and I attribute it more to the individual personality and their state of mind that day irresepective of GA/FA(I actually find GA's to be lot nicer than FA's most of the time).

Another observation I am not sure of yet, but I do think exists at times(out side SFO/bay area) when things are difficult because of a flight cancellation is that Caucasians get beeter treatment than Asians(of course the status matter - but there are grades of attitude shown even if all passengers have the same status)