In 2016, the existing Amazon flying was announced at ATSG first, and hopes and dreams at Atlas were dashed. Then weeks later the Atlas flying for Amazon was announced.
I don't know why ATSG announces flying immediately and Atlas keeps customer agreements closer to the vest, but that's just how it is.
I'm not saying everything is rainbows and unicorns, but let's wait until the end of Q1 until concluding that ATSG is the chosen child.