God the Mage forum has not been this much fun in a loooooong time!
Way to derail guys! Woot!
Ok, anyway. What Yoman said, OP. It's hard to understand what you mean- you are talking about gear direction or buff direction? That's two different scenarios.
If the question is "Should I pay 900mil gold for the Shackles staff and skimp on ma stats?" then the answer is... maybe? The Shackles staff is too good to pass up if you have 900mil and a seller, but you can always just wait and farm more ma stats, so... hmmm.
If the question is "Should I use Mdam food or MA food?" the answer is try both on each boss/instance. If you get more dps with the mdam food, use it on that boss/instance. If you get more with the mattack food- you get the point. The mattack softcap is somewhere between 125-130k, so if you are close to that cap without food, try the mdam food. You'll figure out which food to use in each instance. I always carry both, but since I am still gearing, I almost always use the MA food.
Ok, back to derailsville.
Borella is a big meanie. He did kill me (actually, he spam killed me), but he had 2 babymages chain silencing and stunning me lol. However- he woulda killed me anyway, cause mdef=good lol. I needed a rogue! When have you ever been in an arena and not had any rogues at all? Lol.
Bottom line: In p/s vs p/s the mdef vs. mattak formula is very very relevant, and while I'd love to actually siege against Bor to see just how much more effective it is to be heavy MA statted vs heavy Wis statted- the jury is still out. I think I probably hit a lot harder on low mdef targets, but on high mdef targets, Bor will always hit for just as much or more than me, despite the difference in MA.