I play healer Sage on Luka Sene (eu pve), and I've been monitoring the class diversity in the zones. On my server more than 50 % seem to play Sage, and most I've met say they are healing spec. I'm used to suffering a lack of healers in MMOs so this really caught me by surprise. Next ACs in popularity would seem to be Shadow and Commando. Now if the Commandos like healing too, I'd say we have something around 60-70 % healers of the population.
I barely ever see Scoundrels and Guardians are pretty rare too.
So I'm interested, how are things on other servers? I'm considering a new main because of this, although I love healing role.