I've had a lot of jobs, so I've had a lot of bosses. It's pretty half and half with the good/badness, too.

Right now, my boss for my tutoring/academic support job is very nice. Sometimes, when I have no appointments, she'll come in and talk to me about her grandkids, which is kind of annoying but I don't mind it, and she's very friendly the entire while.

My boss at the deli is very nice to everyone's face, but is actually sort of a steely bitch once you turn around. After three years of working there, I've witnessed this enough times - her just humoring everyone. This doesn't actually make me dislike her at all, but it's very annoying when there's an actual problem in the workplace.