Would you get the 2015 MacBook 13' or the new non touchbar one?
I don't feel the need for the touch bar one (I don't hate it, though). If I was on the go, I'd be more inclined to get the lighter 13" model. If I had to edit video in final cut pro on the go, the touch bar might appeal to me.
Test the screens at an Apple store or other electronics dealer. Is the 13" screen just too small for you to use on the go? This is where hands on time works very well. You may find that you need a minimum of 15 to see comfortably. In that case, the newer 15 inch has a fantastic screen with wider color gamut. They get brighter than previous models, too. Good if you are outdoors or in a sunny location.
You might just enjoy the look of the new ones more. IMHO, the screen is super important since you will stare at it so much. This is where I do not like the Mac Book air as much.