I too prefer the public naming competitions to the auctions, even though with open naming contest you'll inevitably get nominations of "Tigger" or "Kitty" or the ever present "Tiger McTigerface"!
As far as Auckland's cub goes, I would love to see her get a name that reflects her high value and isn't widely used for tigers as far as I know. Perhaps Harta (treasure), Permata (jewel), Dewi (goddess or divine) or Putri (princess) or something of that nature?
Interesting that Melati is a common choice for tigresses! I would have thought it would be a more common choice for female orangutans and might have been appropriate as a name for a daughter of Melur, if she had had one. Continuing the tradition, if you will, since Melur's mother was called Yasmin (jasmine flower), Melur is the Malay version of the same, and Melati would be the Indonesian variant!