The only time a COR should be wielding Fire/Vulcan's Staff is for Quick Draw.
Even with sushi and /RNG, your ranged accuracy will not be high enough to justify wielding a staff.
Very much false. First, meripo/exp isn't everything.
At endgame, there are plenty of times where mobs are low level and have very low evasion, but they have nasty AoE attacks, potentially making it more useful to stand at a distance and shoot for tp. Einherjar, certain Limbus zones, etc. In that case, Fire/Vulcan's (with something like a Coffinmaker or Martial) is a great choice.
Quite a few mission fights are the same thing. ACP final fights is a great example, as is the CoP 6-4 Airship fight (Ultima and Omega have both very low evasion and very nasty AoE).
Even in exp/merit parties, sometimes you'll find that you're very much able to trade R.Acc for R.Atk. Good example is any pre-merit party level 54+ with a RNG where you use Hunter's Roll. It's a good roll anyway in that situation, as Chaos/Hunter's are clearly the most beneficial rolls to the RNG, whereas the RNG wouldn't get anything out of something like Fighter's. The R.Acc bonus will be huge from the roll, allowing you to give up some R.Acc (possibly from food, but from the weapon slot is certainly a reasonable choice).
And sometimes you'll be fighting something like Imps, with their annoying Amnesia. I find it easier to stand at range and shoot them, only running in to buff the melees. If you're not overcamping, you may indeed find your R.Acc good enough to warrant switching your weapon for more R.Atk.
Remember Axe Grip too. That's an additional STR+3 when you're using a staff, and a really nice benefit is that it even retains the STR bonus when you sync down (from the lv65 grip). In the 50s, it still has the full +3 to STR.
Never melee with r.acc. daggers. NEVER.
What about running in to buff the melees when you've been shooting for tp with your weapon out (for WS), and you hit the mob once or twice with your dagger and get some tp while you're rolling ;)
Seriously, I agree with the general principle. You shouldn't be standing next to the mob full time and hacking away with your Archer's/Trailer's. I'm just being difficult though - never say NEVER
. Edited, Jul 31st 2009 3:34pm by Anza