This was my recent experience choosing between a new XPS 13 or a T14s amd. Side by side the screens weren't that different. Port selection, keyboard quality, and trackpoint availability were the tiebreakers in favor of the Thinkpad. (Didn't care much about the performance difference due to my light use case.)
But the thing that really gets me is the 16:10 resolution, I could personally never go back after using it, it just feels correct (to me).
Agreed. Without a dock/external monitor 13" and 14" are really not the sizes one should focus on for productivity, except in short bursts. 16:10 really makes an impact on displays smaller than 17". It took serious justification for me to give up the XPS 13" 16:10 display in favor of a 16:9 14" laptop. I absolutely would not have chosen a 13" 16:9 display because of how big of a net loss it is.
flashbacks from 2010 incoming ...
I still don't understand why people accepted the downgrade back then so easily, some of them even thinking 16:9 is somehow more modern or better.