To drag this slightly off topic, anyone care to rate jumpseats in order of most to least comfortable?

From my experience:
777
747
757/767
A319/320
727
737
CRJ-170
MD-80
Saab 34

Some of those were recent rides; others were quite a while ago. I'm always thankful for the ride and have always been treated great by the crews.
I still remember my first experience jumpseating - on a TWA MD-80; ORD-STL in F.