Since you are MMOC I assume you enjoy the MMO aspect of games, have you tried out Age of Empire: Online? It was very enjoyable for me since the AoE series was the first online game I ever played and my first RTS.
I played with a friend and we were eventually able to farm a few of the legendary dailys (pre summer patch I believe). Some of the legendary quests were very fun and difficult, some we even spent a solid 24+ hours of playtime just to get one figured out, reminded us a lot of progression raiding.
Each unit has its own gear slots and you can find chests on maps and get chests as quest rewards that give you gear. The ammount of gear is vast and changes how your units look. There is even vanity legendary armor that makes some units look great. The art is cartoonish but in the same way wow is. The textures are sharp and animations are fluid.
Most importantly you can play it for free, its $20 to unlock a race for premium (drastically better gear available). I believe I hit a steam special and got everything you can possibly unlock for a crazy low price. I haven't been back to it simply because of Diablo 3, Guild Wars 2, and now Black Ops 2