This is my rough guide to thinking about airlines and hotels. This can be useful, because it helps to understand announcements and changes that each one makes and also for transparency as you read my own writing. Specifically, these are my rough biases or frames as I think about each of the major U.S. airlines and hotel chains. I love some things about each one, but each also has its flaws.
Overall I fly American Airlines most, but I do fly everyone, and I stay at Hyatt most and recommend Marriott as a primary ‘backup’ chain since Hyatt isn’t everywhere you might travel.