First off, wrong forum. But to answer your question, the griffons are a very light binding, although a lot of people on here will rip on them for breaking easily. I have griffons mounted on my park skis, and I've been riding them for two years with zero problems.
But a lot of people will recommend the FKS because they are probably the sturdiest binding out there. If youre a light rider, the FKS might be a little too burly for you and i would go with the griffons. If youre heavier or just want a burlier binding, go with the fks