False advertising is a screw job and should be addressed. As far as OCZ not knowing about it, don't they have a quality control process??
Regarding the different thermal compounds, I have come to believe it is up to the individual user to decide what works best. I've used AS but never did achieve the incredible results others have seen, and I followed the instructions step by step more than once. I even printed them out and checked them off. The instructions were followed as closely to the letter as possible. Maybe I still screwed something up. For the past year or two I have used the fake CompUSA goop and have received very good to excellent results every time.
I was looking for a good review for the type 44 compound but only found one (link posted below). While my results with AS and the CUSA goop were almost the same I can't go as far as the reviewer did and rate the following six all the same. My "test bed" is far from precise and my results were not anywhere scientific. All I know at this point is that I would really like to experience the huge improvement others have seen. For now I will use what works for me.
My XP2400 runs in the high 30's to 41C under load and my XP1800 has never seen anything above 36C.
LINK
Brand: Idle Temp Stress Temp
Arctic Silver 80F / 26.6C 111F / 43.8C
Arctic Silver II 80F / 26.6C 111F / 43.8C
OCZ QuickSilver 80F / 26.6C 111F / 43.8C
Generic Silicone 80F / 26.6C 111F / 43.8C
Type 44 80F / 26.6C 111F / 43.8C
Quality Silicone 80F / 26.6C 111F / 43.8C