I'll be travelling on JAL in business class in February, and I'm given two options, either ORD or DFW..
if you had to pick one, which one would you pick?
Both connection times are > 6 hours, and since I'm using miles additional miles, I don't really care about additional flight time.
I think the flagship lounges are closed in both airports, so I'm not really sure which ones I should do.

Any thoughts?