I don't mind Khadgar, but prolonged exposure to him kind of makes me want to use the 'MS' word.
He's experienced and aged but good looking, he's extremely powerful and does things no other mages can do, he's a sexy badass rebel who doesn't do what the Council wants, and he is always cracking jokes. He seems to have no real flaws.
MS Word?
Microsoft Word?
Mortal Strike Word?
Khadgar is the new Thrall.
Khadgar will probably be dead at the end of this expansion or sometime in the next one. Bank it. I think he only got a lot of exposure in WOD and Legion is because... lol the Warcraft movie.