Who is the best?

So-I get a phone call today from a woman who is organizing a very big state art show. Each school is allowed to summit only two pieces of art and the applications had to be turned in about a month ago. When she called- I was at once proud of myself for making the dead line, but then realized that instead of submitting 2 names I had submitted 5. I guess I got confused with the entry numbers and wanted to make sure I had the max amount possible.
After realizing my mistake I at once have to pick two students out of the five and at that moment what should be an easy answer turns into this philosophical question of who is the best?
Details:
Lest dissect the group- I have 4 girls and one boy. One in kindergarten, one in 1st, one in 2nd, and two in third ( the boy being in third grade).
The student in 3rd grade is amazing- every piece of art she makes is beautiful and she also just had a writing piece place on state level...
My little kindergarten student made this awesome mixed media piece and I love it so much I just want to show it off to the world. Because it makes me look good... ( This is bad I know)
The second grade student- her art even though quite good- I mean she is very talented.. I don't think it will stand out enough- because of the art lesson - not because of any lack of talent on her part.
The Boy- shows little interest in art until recently and them boom! He create this awesome oil pastel.
The first grader- so sweet and her teacher thinks it could really boost her self confidence. .. plus her teacher is awesome..
Solution:
Awesome third grader should go- but she just experienced a lot of success in her writing and I really do want to share the wealth.. so I have to say no.
Kinderpicasso- she is 5 and like an amazing artist- plus she is really cool. I won an art contest in Kindergarten and it changed my life... so Yes?
No to the boy- because am I just choosing him because I want and even boy and girl entry?
No to 2nd grader- because the first grader's art stands out way more.

So who is the best?

Lesson Learned:
If you have this much trouble picking art entries for a contest- you will never make it as a CEO or principle, or military leader. ...