Okacz
-Great, if not perfect, patch cycle (aside of the very end, but I guess one year of nothing before next expansion is to be expected)
-All raiding tiers being really good, ToT being one of the best raids ever (opinion)
-Simple yet pretty good casual content. Isle of Thunder and Dominance Point dailies were much better than world quests, and Timeless Isle was a great time sink in the time of no content
-Introduction of 3 great battlegrounds for PvPers, and PvP being in overall decent state
-Really good class design overall. No fixing what wasn't broken, and the redesigns of specs that needed them went great. New talent trees were a step in the right direction.
-Brawlers Guild baby!
-Cooking split into like 5 branches, with cooking dailies and Harvest Moon clone
For me personally, the more relaxed atmosphere was amazing. Valley of the Four Winds, where the biggest conflict is "Chen has been kicked out of his brewery, so he needs to make some sweet ass beer" might be my favourite zone in the game.