[Mr. Jeeves]

...me and my wife had a very terrible time flying for 3 hrs between Dallas and Tampa.

For that short a flight, you were on a 737 (maybe a -900 variant), most likely. Some US airlines pick subpar coach configurations for those - especially the discount ones.

The currently operating 777 models are huge, have two aisles, and are flown only on transcontinental or international routes - you wouldn't have had any complaints about the elbow room. :)

[adorno]

For that short a flight, you were on a 737 (maybe a -900 variant), most likely.

Actually, you're right. We flew from LA to Dallas and then to Tampa. It's the first leg that we flew on a 777-9, and that was the plane with the narrow aisles and narrow seats. And in reality, that first leg was shorter trip, some 2 hrs and 28 minutes. It's the last leg that had the 737, and those seats were a bit more pleasant, but not by much. I still hate the 777-X, and that is the plane that I hope I never have to ride in again.