I would not have noticed the missing row ahead of time had Auntie not caught it. Wow, good eye! I would hope someone would "catch" that for me as well before binding, because I would study the thing afterward and be like, "Wow, that side has 11 white squares diagonally but this side only 10." Not being police, just a balance thing that I would eventually notice.
As for your question, I think the quilt is lively enough without a border. I would bind it in the dark chocolate unless it had to be bigger, in which case I might audition a batik with corals, off whites, and chocolates running through it. If that's the case, I'd do maybe a 2" inner chocolate border, then 5" outer batik, then chocolate binding.
It's a beautiful Trip Around the World quilt, Tom! Good work. Best wishes in deciding how to finish it.
PS I was tempted to try to convince you to go with a patriotic, striped border and see how you'd react. LOL