Actually, it's a shibboleth. It used to be said in Ireland that Roman Catholic called it "haitch" and Protestants called it "aitch". "Haitch" is to be found furth of Ireland though.
And Australian, I believe.
I'm Australian, and I say 'A Hotel', and 'A Herb'. Until very recently, I'd never heard anyone ever say it differently.
GP is talking about the name of the letter H like when you're saying the ABCs. How do you pronounce it?
Pardon me. I actually pronounce it heitsh, but I don't think there's a concensus among Australians about that.