Why is Garuda axe better then the rest? It's weaker but all I can see is its faster and you will do more dmg in the long run if I'm thinking right?
The DMG on the weapon only does the auto attack damage, all weapon skill damage is calculated using the DPS shown on the weapon. War will get most of it's damage out of weapon skills so the DPS is more important, since war is best used for multiple mobs that pumps the WS damage even higher due to your WS hitting several mobs at once.
Using garuda's I think your caps are around 356 str 312 vit, how much acc you need will be different depending on what your are fighting so can't give a straight answer for that.