I think best for necklace is Electrum, earring is the red coral, bracelets is the militia and the rings are the aetherite. The best for most slots is the one with the class name in it yes, except belt which is the raptorskin merchant's purse. The best off-hand is a ilvl55 that is crafted by another crafting classes depending on which class you are. For weavers like me, it's carpentry for the militia spinning wheel.