with my m/w I have Wisdom, Intensification (for crit dmg increase), Rage mana (for overall dmg increase), and energy influx (for crit and duration) all maxxed. I also put about 75 pts into the m/w crit buff also. Then Beserk at 50 (max), for mad beserk. Those are the main major things for max dps, maybe elemental weakness which I have 65 pts into. I also made a staff for m/w....
Now however I don't use the staff on my w/m I use the wand/tali for faster attack speed, staff is still pretty good but a stat stick (with 9% fire power increase), sure doesn't hurt. Also an extra miracle/Recon/Burst, certainly doesn't hurt, and neither does the stat-stick. I was tempted to T10 the tali instead of stat... but I don't really think that would have given enough increase to justify. Would only be a 1.8% increase, so nah.
Double recon allows for lower levels to hit the 90% max also. Not to mention after burns... if there is such a thing anymore, wand with pet/raid will be quicker attacks.
I also just added Tyrants instead of my Blocks, more HP, more stam, more str for m/w, and a little more hp... till they give us int/stam runes lol.