"With the concept of "best in slots," anyone can look up what gear they should have for what purpose"

The only problem with this is that "best in slot" compilations only apply to that gear SET. If you don't have EVERY piece of that best in slot set, it's not best in slot anymore. For example, if you have everything best in slot but the chest piece and the chest piece you DO have is chock full of expertise that puts you over the cap, then "best in slot" changes. You may need to change your belt and gloves to compensate for the extra expertise and be able to squeeze some extra crit and haste out instead until you actually get the best in slot chest you need. That is what makes gearing an intelligent process. I agree, there are too many stats right now, but they are oversimplifying. They want things to be more intuitive. OK. How does having a stat called ATTACK POWER make it difficult to understand what will make your ATTACKs more POWERful? They should be removing armor pen, expertise, spell penetration, etc, not basic, easy to understand stats like attack power and spell power.