I dunno. The Kessler 185 I bought for the board test last year was the stiffest of the group, and I liked it the best. The Donek Rec GS was the softest, but it was still a great ride. It could be turned tighter and therefore was more versatile and "comfortable". But for carving at 10 tenths, the stiffer boards inspired more confidence.
My 14m 170 is stiffer than the 12m 177 I used to have, and I like the 170 better. The softer board would give up the ghost at times.