Assuming you mean worlds to live in:
In order of preference: Windenburg, Willow Creek, Brindleton Bay, and Henford (pretty much a tie there). Glimmerbrook is a backup for sims wanting to get away from it all. The other worlds (including Glimmerbrook) are seldom visited unless there is a reason to as they are nothing but landscapes with little to do or find. What is the point of going to a world if there is nothing to do but look at it? Far too many worlds have few lots of any sort, too many missed opportunities for putting in something useful for sims to go to and do things. Example: Strangerville is useless apart from the quest. Have lived in many 'military towns' so know from experience that there should be more than two community & 3 residential (2 of which are taken) lots in the lower section. There are an abandoned motel, diner, and gas station on the highway. Really? That should be a hopping place for those traveling along the road with places to gas up, eat, sleep, and unwind. The Route 66 thing. Could go on but you get the idea, too many worlds are just so much set dressing, not active simming opportunities. This is particularly true of the new ones.