Lightly accented India-English. Be they from the North or the South, there's something fluid about the way they speak when they've been taught the British system.
Scottish and is it Cockney they speak around Liverpool?
News caster Australian is also nice.
I of course like the sound of the West Coast accent, after all it's familiar and thus doesn't have any negative impressions or subconscious feeling of "other". Granted people seems to think I'm from elsewhere because how I speak. It's very peculiar.