Replying to STH 14 or FKS 120

What is the better binding? Im a light guy so I don't really need the 14 din and I'v heard nothing but good things about the FKS.

My dilemma at the minute is I have a pair of Kung Fujas with STH 12 on them and a pair of Anthems with no bindings. I was thinking buy the STH14s and move them to the Fujas and put the 12s on my Anthems. Or leave the STH12s on the Fujas and put FKS on the Anthems.

What would you guys do, and give me some reasons not just FKS R TEH BEST.