I've had both and much prefer Deville damping. They also went 2 years with no servicing and no problems! Variability is clearly there. I was worried about support mainly with my Vip'r rear rather than the fork.
I have the problem with my pikes described. I can make them smooth and compliant with no tokens but they blow through on big hits, although sit fairly high, unless I add more pressure, then they get harsh.
If aI add tokens they just feel harsh but work fine, seem sensitive, sit high, pressure is ok, but they just 'feel' harsh and a bit spiky. I've also had inconsistent damping over successive runs at places like Antur Stiniog where I've had to adjust them over the day... I got a long and technical explanation from Craig at Avalanche as to why this happens..
I was kinda waiting for the new 36 to see if it meets the 2012 36 vintage damping year, although I'd like to see some ride reports. Failing that my plan was a Pike again and add an avalanche damper, which does add weight so the 100g saving over the Fox would make it a better option. pikes plenty stiff enough for me.
My Devilles just had a 'quality' to the feel when riding in tough conditions that my a pikes don't, but I don't think the actual performance is much different.
Would I buy BOS again now Jungle have taken over, probably not, until Mr Bossard sticks to engineering and hands over customer service and business to someone who knows what the market wants in terms of spares and support!