Well, I prefer the Rossignol Heel piece over anything else, but for the reasons you mentioned, I won't buy them. I am in the process of putting inserts into all my skis, and since you can't swap FKS brakes, because you can't buy them, I would be hard pressed to make that work.
I like the Jesters, because they have the same lifted spring as the Rossignol PX series, but Marker Royal bindings are stupid when it comes to forward pressure, and I do not like plastic bindings. Far too much of the Jester is constructed of plastic.
Soo... in my PERSONAL opinion, what works for me, is the Head/Tyrolia Mojo/Peak series. I have the 15dins on my lizzies, cuz they are a little lighter and the din adjusts from 5-15 so I can let people borrow them, and I have the 18s that I swap between everything else. They are burly, they are metal, and other then the FKS, they are, in my opinion, the best bindings money can buy. Plus, the 15 din version shows up on Steepandcheap every once in a while for under 125 bucks.
No way your gonna find a pair of FKS or Jesters for that!