Green

The early leader for your favorite color is definitely green. Any question involving or possibly involving a color results in the answer being green.

Interestingly, you don't have a solid grasp on color yet, so you don't actually know which item is green.

I don't know what my favorite color was at that age and I don't really have a strong favorite color feeling now. Maybe black.

It will be interesting to see if you still like green best when you actually know what green is.