I know there are threads for each plane but nothing that compared the two? One of my flights was changed from the 777-300ER (is that a 773?) to the 787-10 and I was wondering if the Polaris seats are the same in each jet? From what I can tell the Dreamliners Polaris seats are more narrow - one YouTuber looked very squished (shoulders). Are those seats made by a different company? I can't change the plane, just curious. if you COULD choose, which one would you choose? Solo. Thanks!