Quote from Bagstone@Ruby/emerald: We had that discussion actually a week ago, though about Archon. The thing is that you stack CC as CMWW wizard, but lack CHD (it's not one of the most important stats and you can't get CHD from a Chantodo's main hand). So you're unlikely to get over the 1:10 CC:CHD threshold at which the ruby usually becomes better. I've actually never heard anyone say that ruby is better for CMWW, and I can't imagine why. A quick Google search revealed that there might have been a bug for some time, but I was on a hiatus, maybe I missed that.
@Trifecta: If you want to save some money, drop crit hit damage. It's the least important stat. Also, since you went for the Mempo route, you need LoH on jewelry. And you have quite low mitigation. Therefore, if I were you, I would look for 1. CC 2. IAS 3. LoH 4. allres on jewelry. After that, I'd look into other DPS stats (int, CHD, average damage) or EHP stats (armor, usually comes quite cheap).
@Zuni: It's not useless. But there are better options. For example, the Zuni boots have elemental damage, but Chantodo's is not a black weapon. Zuni boots also have movement speed by default, which is not required for CMWW (it's a nice-to-have though and many people won't miss it, but just saying... but since you're using Magic Weapon and not Teleport you probably don't want to drop MS). The ring is really sub-par as it always comes with crit hit damage by default; and crit hit damage is the one trifecta stat we really don't care about. CC+IAS are important, as mentioned above. And getting a trifecta Zuni is just insanely expensive.
Thanks again ! I am already looking for a ring with those specific stats in mind.