Fell Cleave Options

[Arcon]

For head, go with the Varangian Helm over Ravager's +1. I'd still go with Varangian when you upgrade it to +2 since acc is very likely to be capped, double attack isn't worth it for AOE WS, and FC is purely STR based so the VIT doesn't offer anything. Crit +3% I'm not sure about though. This may or may not beat 4STR.

This. Completely. I forgot that Varangian Helm also has STR on it, which makes my point moot.

Critical hit rate doesn't affect Fell Cleave, so that doesn't matter, and Acc should be capped on most things, both inside and outside of Abyssea. Fell Cleave has a very high STR mod, so you'll see big rewards from that, even when Attack isn't capped.