How are you crafting your Artian dual blades?

I'm starting my artian weapons farm and I'd like to know what bonuses should I look for.

1) for the artian parts do you go for affinity or attack? (Or a mix,) 2) which buffs do you want in an ideal world? 3) which buffs do you want to avoid? 4) when is it better to dismantle it and recraft it?

Thanks for the everything