I am enjoying various things but the most is QUESTING. You know, some quest are something forgetable, but some other are just pure gold.
Good quests talk about stories, dungeons and human characteristics of the NPC and the community. The fact that you don’t have the arrow indicating which way you should go, makes you read and understand the quest. Therefore, you are inmersed in the story, you are not a human controlling a fantasy character: you are the fantasy character, at least for a couple of hours of game play.
Some of the quests I enjoyed are: Succubus chain quest for Warlock, Test of lore (it is a long quest chain) and RFC quest chains with Thrall.
I’m also enjoying using my potions, my food and talking about lore in /1 and my brother while turning in quests.
In Warcraft Classic, you feel like a Warcraft III mercenary or just an ally of a faction, doing it’s own way to be useful for the fantasy community.
I apologize for any spelling error