Just hit 4 but I’m the person that like to round out each alt before moving onto the next. I find 210+ ilevel to be a good benchmark before moving onto the next.
I’m in it for a different reason though. I’m kind of meh at PvP and I want to be able to fill in leadership roles in PvE so I figured learning how to play each class through and through at the start of each expansion is a great way to get better at WoW.
I have 4 done each covenant campaign maxed out but then left kyrian one so have to venthyrs. Priest which I don’t play anymore shaman, two warriors. Two are above 210 ilvl
I’m an alt-oholic (have an alt army of 62ish level 50+ toons)
And yet I have only been able to bring myself to level 5 to max at this stage…
that maw into just makes me want to run the other way.
And then the slowness of leveling to 60 is too much. Like the bonus objectives give an insulting amount of XP for the time they take to do. I think if you were to do every single bonus objective it only gets you 2 and a bit levels… out of the 10 needed 
Funny you said that I started leveling my mage last night xD
I hit 60 on my 8th character last night. Other than that fresh character that I haven’t had the chance to really do anything with, I’ve got a 168 lock that I haven’t touched since week 2, the rest are 180+ with 4 of them 200+ (main is 210).
I have 5 so far. I want to finish up the current renown levels for the four factions before I work on bringing up any more characters to cap.
4 so far, but I’ve got several post-maw that just haven’t finished leveling yet.
8, with 2-3 more that have been through the Maw and ready to level when I feel like it.
There’s this one at 218, one 215, two others 210+ and the other four are poorly geared.
To me though it feels like leveling isn’t done at 60. There’s Renown, Campaigns, Callings, etc. Post-60 feels like an extension of 50-60 in a way, rather than traditional endgame with there being a lot of content that feels to me like leveling.
I really started to lose interest in leveling after the 4th or 5th 60 actually, but because I play both factions with different friends I wanted to get some additional characters ready.
I have a bunch of alts, all variations of levels lol but only one even close to 60. My lvl 52 warrior.
Two?
I get so bored leveling I fall asleep at the keyboard.
Three holy pallies, 227-216-207 