Not necessarily. The added effect of Ifrit procs 9-10% of the time--if I remember right--and then only on normal attacks. On the other hand, you could have +1DMG on all attacks and WSs. A higher DMG rating also yields a higher WS stat cap. How much? We don't know yet, but it's something else to consider.
I havent tested but it seems to me that it procs far more frequently than 10%
One proc, on one fist gives me at least 30 damage, that should equal with 30 attacks or weaponskills with the GC weapons.

Now about the higher WS cap of only 1 damage, I can't prove my saying but I believe that the cap rise is insignificant unless someone else can provide testing and prove otherwise.

Hooks are better with sanction though, I am with you on that although my STR and INT are already capped even with ifrit claws.
It's too bad that we lose sanction whe we die :/