Coming from somebody who has owned both, go with the Tyrolias(head). I don't like Look PX series heels much, something always seems off to me, and they often have a high stand height. FKS looks(Like FKS185/P 18 I think, FKS 155, FKS 120) are much better than PX series, but I still love Tyrolias more. The toe on Tyrolias has a release in every direction, and more elastic movement before releasing than Look toes do(so less pre releasing, while being safer). I also found that even though Look toes have a nice edge to edge feel(so do Tyrolias) I should have had them release when they didn't, and they also released a few times I didn't want to(only pre-releases were on stiff skis skiing hard crud fastly, though). I have never wished that my Tyrolias released when they didn't, and I have honestly never had them pre release in any type of skiing. The Mojos also have a low stand height, which in my mind is better for any skiing other than racing(and even when I raced I wished the stand heights were a bit lower for SG and DH). I always say Tyrolias(Especially Peaks/Mojos)>Good Sollys(STH 16(NOT 09 STH 14s, they have Z toe), 914 Lab, S912/S914(I find S916 overkill, but they would be great on a heavy crud charger ski), S900)>then FKS. I think Vist or something look like they could be good, but I have never used them. I don't buy Markers(other than Dukes, purely for the touring function...I can't wait till Sollys 2011 touring binder), or low end Solly's, the super lightweight tyrolias(they are completely different construction, Mojo/Peak/rail flex/free flex are all great), or Looks other than FKS.