I've got deadbolt 18s. They are a good binding but very heavy. I got them because I got a great price. I've also got Mojo 15s. The Mojo 15s feel just as solid as the 18s to ski on but they're lighter so I'd get those instead. Or, if price isn't an issue than a turntable like an FKS would be great. I've got old turntable rossi's on slalom skis and they're great so I'd assume that the new turntable bindings are just as good...and light.
Don't get STH 16s whatever you do. I had a pair and hated them. You'll have to ski around with a screwdriver to keep tightening up the nose pieces if you do.