There's a balance.... a zen if you will... with weapons.
Speed - specials - damage.
When you find a weapon that lives harmoniously within that triad, you will find peace.
PvP the best mace weapon is a mace.
PvM the best mace weapon changes.
Don't get caught up with two-handed and bushido. Yes you gain some parry chance, but you loose potions.
And don't get caught up with trying to find the perfect weapon. You'll spend too much time, effort and gold trying to get the "perfect" weapon for you. Better to get a decent assortment of weapons, and learn how to switch.
Like having a Tessen with Mana Leech and Lower Defense. You use it when you need to recast Enemy of One or something, then switch back to your Life Leech Diamond Mace for damage. You could get both of those weapons for a small percentage of what a HML, HLL, HLD Macing Weapon would cost. And switching between them is as simple as assigning a hotkey.
And if your really good, you'll have a couple of weapons that excel at what they do, and work harmoniously together. For a Sammy, a High Damage, Life Leech, Quick two hander would be excellent when used with a Super Fast, Mana Leech one hander. When you need a potion - just switch weapons and drink away, then switch back.
Or of course, write a script to do it.