I like them both. Blue is more soothing wheras yellow is a happier color.
My vote is yellow. ;-)

2 for me.

The blocks pop more with the yellow.

Blue here! I'm not a fan of pale yellow. Nice blocks!

I like the yellow, it seems to pop the color of the blocks more.

I vote for the blue!

I like the yellow.

Blue!

I like the blue but I would put a small sashing of yellow then a larger sashing of blue then you have both and the yellow inside would bring out the blue more.

I like the yellow for the sashing and the blue for the binding.