Which Yarn shall I use for Mitts for Glory??

This is the varigated that I used for the two pairs I have knit for the other 14 year olds, but I wonder about the light parts that disrupt the color?

I have found two other colors that might be better, not having any of the almost white streaks.

The Koigu is all blues, leaning towards teal and purple. The purple doesn't show up too well on my monitor.

The Happy Feet has a bit of yellow, green, aqua, and purple-navy.

Which do you think she would be happier with?