Number 1: COCO BANDICOOT

"I hacked his brain and put him to sleep. He looked like he needed some, the poor shark thingie."

This quote sums up Coco better than any paragraph will. Coco is as intelligent as Crash is dumb, and still takes the time to be a sweet sister.

And this is probably as optimum as you can get. The sidekick character (who somehow always manages to top these lists), and one of the best girls in the franchise. And then some.