I've been using Vector 2 (dual sided) pedals since the spring. I like them very much. I considered the P1 pedals but there wasn't much feedback available on them yet, I didn't love the clunky appearance, and I got a pretty good deal on the Vectors.

I got mine at REI during their 20 % off sale, which brought the price to $1,200 and then used my dividend and some gift cards I'd bought at a discount.

I find the Cycling Dynamics data interesting but not terribly useful. It could probably be used to work out certain fit issues, but not ones that bother me personally. Seated vs standing time/power is interesting to look at.