I've always had problems with alignment. In the 40 odd years I've played D&D, AD&D etc. I've chosen an alignment and always end up playing the same type of person. My own personality has a habit of shining through.
A somewhat shorter timescale with RPGing in my case but yeah, I've found the same thing. I guess some people are better at creating a persona and getting into that mind-set, but my characters always just end up being me. I'd be a terrible actress.
