Replying to FKS or STH2 for an all mountain binding?

Hey guys, so I've been doing a lot of research between these two bindings and I'm still up in the air on them. These are going on 188 Moment PB & J's as an all mountain setup. I'm 5'10" and 200lbs, and like to ski fairly aggressively. This setup really isn't going into the park, I've got a specific park setup for that. I'm just really torn between the FKS 140 and the STH2 16. I can get whichever, as its going to be a Christmas gift. Mainly, what I'm concerned about is durability. Both bindings will give me the DIN I need, but I'm leaning towards the STH2 because I had read they had a solid metal construction, whereas the FKS 140 had a plastic heel piece that tended to snap. I've also broken my brakes a couple times and I had read they're much cheaper to replace on the STH2's. I suppose I could also throw FKS 180's into the mix as well, which is a definite overkill on the DIN I know, but like I said, my main concern at the moment is durability.

So yeah, I know they're both awesome bindings, but I'm just basically asking peoples opinions to help me make the decision. From what I've read I'm really leaning towards the STH2 over the FKS, but I just want to make sure I'm making a good decision. I have not done much research on Marker Jesters, but if someone thinks I should throw those into the mix too let me know. Thanks for any help guys.