I don't much mind what i am called on board most of the time, as long as it is delivered in a friendly polite manner.
It does make an impression when i am in F, and they use my name, last time however the CSD was SO friendly and welcoming when using my name, that i thought he knew me, and spent a few hours trying to work out where he knew me from.
The only time i have taken any offence, was when a crew member called me Sir, whilst handing out the wash bags in F. Would have been fine with it, if i was actually a man. Hey ho.