I think using Moogle as an example is a bit unfair as I understand it's the "unofficial" UK server so it's always going to be overloaded. I'm on Durandal (Legacy/JP) and it's overflowing - with queues, you can't move for people. If you picked a popular server you can't really complain that there are too many people on it, go for a less popular server although if SE add new servers you'll have the starting zones overwhelmed with people who switched....... it's a no-win situation (though more legacy would be nice with legacy to legacy x-fers).