My favorite is the Magical Girl MC
The item is just adorable in general, especially the white companion and I'm a huge fan of magical school girl animes, so when this item came out I instantly had to have one, along with some of the different color clothes.
I have always loved the stars and space, and even wanted to be an astronaught as a child (what child doesn't at one point or another?), and later an astronomer when I was a teenager.
Now that I have children of my own, 6 precious babies playing amongst the stars and 2 others here on Earth with me, the stars have extra meaning and connect me to the babies that I have lost heartheartheart
i actually went back and forth on this and ultimately had to change my answer. i really like this year's february collectible - the legendary mage. as soon as i saw the hair - it brought back memories of the original gaia homepage and the early days when it was gogaia.