Dwilight, Atamara, and the FEI.
Coincidentally, my characters are on Dwilight, Atamara, and the FEI. Whine about it if you want - we all know that's how everyone voted. Giving them three choices (for three characters?) was practically asking for the "save my character's home" thing.
But seriously, Dwilight and FEI should be kept for sure. Dwilight has a huge number of distinctive features: SMA, donut-cities, being a testing island (that is more interesting than BT), having big ol' sea zones, and so forth. FEI is amusing because it's probably the closest we'll get to a "war island" without specifically adding one at this point. Atamara is forgettable, admittedly. I only chose it because there were republics there, and I prefer them for personal reasons.