I definitely want to hear about any of the above - unless it's a "correction" of a UK spelling or (in narration) phrasing. I try to get the dialogue sounding American, but for the rest I write in British English.
I am wondering, how do people who write in British English feel about introspection? Is that okay to write in UK English? It tends to draw me out of the story a lot because I don't think any American (and Lois and Clark are Americans) would think in British English, yet I have seen it more than once. I tend to be verh nit-picky about what sort of things an American character would never say and never think. But I rarely point them out because I don't want to be flamed. After all, I am a stupid, not well read, American. But it is generally something that throws me out of a story more than anything else. However, if I am beta reading, I would always point it out. But I've only ever beta read for Americans and people who are EFL so I haven't had that problem.
Laura