My Style

[Herr Mullen]

Considering the character's original language is Japanese, I fail to see why we should feel compelled to use a specific dialect over another.

Even the subs hint at catchphrases for characters. For example, Yoshino says "This is the worst" several times.

Sure, but that is hardly a dialectal saying. Whether to use British or American slang/vocabulary should not be an issue when writing Digimon fanfiction, in my opinion.

Most people will be fammiler with American characterisation. Unlike the Americans (who translate every British cartoon into American so they don't "confuse the children") we have to watch the American dubs of everything. I'm of the opinion that once people can relate to the dialect, then they can recognise the characters. It's the ultimate in characterisation. Besides, who am I to make up an entire British English characterisation? Not even English readers would be able to recognise the charaters.

I have never heard an British youth say "This is the worst." They're more likely to say "This is bollocks!" That's dialectal.