Okay I just talked to Josh for an outside perspective.
He chose the same 2 I did.
First being the snow shot.
His words being "They are all amazing shots but those 2 evoke the most emotion" respectively.
I would probably ask myself, of the choices you narrowed down, which day meant the most and had the best memories? Which one was telling a story that you want to forever be reminded of?
It doesn't come down to what is actually the best picture. It comes down to which means the most to you.