It’s just not worth it, I’ll stick to American Airlines, thank you very much. They aren’t perfect, but it’s a much more pleasant experience.
I recently flew Jet Blue to New York - highly recommended by a neighbor that flies to Florida and only takes that airlines - the most uncomfortable seats I’ve ever been in in my entire life - old and very lumpy, and this was a five-hour flight and we were in the top-tier class, which is “business” on Jet Blue. Never again.
Ditto for Delta - filthy inside, trays were dirty - seats were very uncomfortable - and we’d upgraded to first class with airline points. Food was old and obviously had been sitting for a long time - we barely got any service at all.
American Airlines is the best, IMO, of all the large carriers- but these days I expect the planes to be dirty, overcrowded and uncomfortable. Hawaiian Airlines was very nice too.