Intuitively it would seem that PVC is less likely to catch on fire (and according to this boaphile article they say PVC is self extinguishing: http://www.boaphileplastics.com/safety.html)
However ignition cited by PVC that org puts at at around 400c:
http://www.pvc.org/en/p/pvcs-physical-properties
And I believe wood on average is 400F --> 200C ?
So both can catch on fire but PVC is the way to go?
Thanks