>>5791001Nanael has a re-release for her 1P color (ie: blue hair), her red hair doesn't. None of the 2P colors do, AFAIK. Airi has a Legacy as well, though unlike most of the other QB figures, her dress doesn't come completely off, her tits have a molded on corset around them, but you can see her breasts still? I dunno, I don't own her.
Menace doesn't have a Legacy. Menace is also one of the most expensive figures, up there with Melona, and the book pack-in only trio of Branwen, Annelotte, and Aldora.
Far as how they are, it really depends on the joints. Even the older, shitty-joint-only figures can have decent joints, it's kind of a crap shoot. Echidna usually isn't too expensive though, so you might as well nab her if you really want her.
The sculpts are all around good, and they've got a lot of poseability, though sometimes it can be a bit restricted by the rubbery-plasticey clothes some of them have, but it depends on the character, and the damaged outfits usually are a lot less restrictive too.