I'll go with Cara Cara for the orange family, Xie Shan as the best of the mandarins , New Zealand Lemonade for the sour group, and Bizzaria (periclinal chimera) which is planted in the ground for the strange. I got the Bizzaria from Laaz some years back.
New Zealand lemonade is not sour. My experience with it so far in Texas is fruit is very nice for potted citrus.
Fruit not so good when grown in the ground by a friend with budwood provided by me and topworked exisiting tree. Fruit very poor if left on the tree too long by a friend. The history with the fruit is just from a handful of people as it has only been available commercially for 1 year. Up until then
it was only citrus enthusiasts like myself. In fact I might be the only person in Texas to import the budwood from California
so far other than one nursery. Brazos nursery imported some budwood and propagated 200 trees. They haven't sold many
as it is still an obscure variety here that isn't known to the general public and hasn't been publicized. I've been trying to get
John Panzarella to get a write up in the Houston Chronicle about the fruit.