up in maine/nh...portland approach has the nicest controllers...they have no traffic to really deal with so they're really pleasant no matter what time of day...
at hartford-brainard in ct there was this guy named john who was a retired center controller...he was hilarious...never had a problem asking someone what the hell they were doing. i instructed there for a while and met him a few times up in the tower and the resturant so i could always get whatever i asked for...and if my student screwed up i just chimed in and it was okay...