Haven't skied the STH12 Drivers, I've got a pair of STH16s of my Wrens and they've served me well, and I have no complaints.
I have, however spent some time on the Axial2 120s, and here's my review on them. Sorry I can't include a 'clicky', I'm on mobile.
Here you go -
http://aslansskiblog.blogspot.co.uk/2012/08/rossignol-axial2-120-ski-binding-review.html?m=1