AirPods Pro work great for me on planes, but I don't have AirPods Max, so couldn't offer a comparison about how much better one might be at ANC over the other. Presumably, if Apple can be believed, the AirPods Pro 2 will be twice as good at ANC as the originals, and the originals are already really good with plane noise.
I had no idea about the in-flight entertainment, since I ignore it and use my phone or iPad.