Dwilight: super unique and I like it, see others' comments.
Beluaterra: I've always had fun on Beluaterra with now like 5 different characters, which makes it the only continent I can say that about besides Dwilight, where I've only actually had one character.
Colonies: I've never played there, but, again, it's so unique and different than the others, and I recall from my retention stats a while back it actually had some of the strongest retention info. I think it appeals to a unique player set we shouldn't lose.
I'd suggest closing one of the two continents with the most overlapping characters; i.e. find the two continents with the most accounts that overlap between them (and maybe don't overlap elsewhere), and delete one of those continents, so you minimize the chance of deleting one of the only continents people like. I'd wager that means deleting either FEI, EI, or Atamara.
Poll