I'm short so the AF PV seats are great, the seat fits me perfect and the recline in a shell works for me. I could see how it wouldn't work as well for people over 5'10".
I can actually sleep in PV, I think the leg support and the adjustable headrest is what makes it work for me.
For me it has been in the $1600 range for AF PV and $1200 for delta coach and I've been taking the AF, even though CDG is a cluster compared to AMS.