Personally I think Hunters and DH just attract the most obnoxious type of people, always seem to be the ones causing arguments and what not in PUGs etc
Now disclaimer, I’m NOT saying all hunters and DH players have crappy attitudes, this thread is just for fun
I think rogues probably attract the absolute worst as far as personalities go because of PvP.
Druids for me
Priest and demon hunter
if you go by Christianity it would be warlocks or death knights wouldn’t it?
if you go by anything else, who knows, people are different.
“Warrior” From my experience. Yours may vary.
as far as pvp goes, definitely rogues.
Played a yolo rated last night, and the raid leader was screaming obscenities in all caps at every player. YOU F#@$%#@ r@!$&# hOW HARD IS IT TO RUN A FLAG, ect ect. He also had some of the lowest stats for the BG.
I can tell you that the most unpleasant people i’ve come across are arena heads that get VERY salty when you kill them in wpvp. They love to log over to a level 1 horde toon and whisper “lmao you need a group to kill me” among other racist and homophobic slurs then when i offer a 1v1 they log never to be seen again.
So glad that Blizzard made a separate window for Whispers. Can close without seeing or reading it.
Anything not a shaman.
Whatever is the mon/max flavor of the week.
Right now it’s hunters who are always zoom zoom zoo. To the point I just don’t feel like tanking anymore.
But in general the dickers tends to spread pretty evenly across the classes.
Rogues, hands down. Mages are a close second.
priests
I would say Rogue. And I say that as someone who has had a Rogue since Vanilla. I think playing a Rogue brings out the worst from people who are already kind of questionable, so it is sort of an exponential effect.
And I love playing my Rogue.
Excuse me I would like to have a wholehearthy conversation with your manager.
Im not toxic, the people that argue with me are the ones that become hostile and toxic.
That new window is an absolute blessing 
But for me, its more so I don’t lose whispers if Nature calls or something. I generally get excited if people take the time to whisper me! I mean, I may not respond but its exciting nonetheless.
Any class on my character creation screen that doesn’t have a glorious beard eligible…hic!
Paladins. It’s always paladins.
Paladins without contest.
As for races, blood elves on the Horde. Also without contest.
In regards to alliance, it’s easier to list the players that aren’t obnoxious than the ones that are. (Worgens and Pandaren were generally nicer.) I went alliance for a few weeks and saw more ego trips and unwarranted elitism than I had in the decade previous.
Each of my toes has a finely braided “beard” running up it. They continue up and around my ankles. Do they count? 