I'm almost half way through the dub of Spice and Wolf*, and for the most part the name change from Horo to Holo hasn't bugged me too much. Part of it because I saw the first episode at AWA and it was dubbed, and the second because they don't say her name too much. Still in spirit it bugged me a bit that they bothered with a name change. I've noticed this isn't the first time this has happened with a character in anime. For example Lina Inverse apparently is Rina Inverse.
So for my questions.
Do you Horo or Holo?
Do name changes bug you?
Do you follow a general rule when talking about a character with aliases?
Do you know why they do the name changes?
(*Please try to avoid spoilers in your reply.)