Per class/race/spec,

I want to calculate using stat weights based on how effective you place your stats. This will be displayed to the user on the tooltip in tandem with what you normally would see. I want players to be able to pick up an item and understand whether the benefits are right for them or not.

For example, when an item has 5 stamina 5 strength on a prot or dps paladin, both the stamina and strength would be a major plus to the prot pally, but unlike the prot pally, the dps pally would prefer some agility over the stamina. So the effectiveness of the item will be displayed with my item compare section to mark the upgrade a +, - or a doesn't matter really.