Sashing

I like it with the sashing, but I think I would make the sashing very narrow.

i like the sashing makes them pop

yes, I think it would look nice this way too, but I think the recipient will love it either way.

My vote is for sashing.

I vote for sashing -- just a narrow strip makes everything pop.

sashing

i like the sashing. but for a child's quilt, probably not so much black is better

Sashing.

I like it without but it kinda depends if the sashing would help make it a more appropriate size quilt - Not sure if you said what size the blocks were so the sashing may give it a little more "cover" room.