ED, Nost, Chrono, Reborn...uhhh, several others. Most have been fairly decent too. It's really only worth going back once, MC / BWL are dull af and most of them seem to peter out before AQ is in.
Nah not private server. A blizzard sponsored and run vanilla server. They should also do one for BC and one for WoTLK as well. Patch each of them up through the end content, have people go through the raids and gear up like you should.
I miss the fucking prestige, man. If you were in a top guild on your server or a PvP rapist you had notoriety in the community, good or bad, and that was SOMETHING. Standing around in IF/Org with Thunderfury, rocking that full wrath. Dreadnaught suit with corrupted ashbringer, etc etc.
And if you weren't one of those people, you saw them and it made you want to be that good, kill that shit, get that gear.
Everything is just so cookie cutter now it's painful.
I was leveling my rogue this weekend and did a TW dungeon. Turned to talk to my wife and walked right into a pack of mobs, no big deal, apologized. Well the tank in full Tanaan gear decided that his mouth was bigger than his ilvl and attempted to chew me and the hunter out for being "terribles". I can't remember his name but at the time I hit him on wowprogress and that was his best character, all LFR kills, nothing else.
And I wanted so bad to be like "Who the fuck do you think you're talking to you little fucking cunt?!" but I couldn't...because I am just another random faggot on the internet and nobody gives a shit. I'm not a main tank of one of the higher mythic guilds on my server just playing my alt, I am a faceless shape in an ocean of sadness.