Let's start with your computing needs. If you're simply going to be surfing the web, emailing, creating & maintaining documents, spreadsheets & presentations, etcetera as well as listen to some music and watch some videos then a MacBook Air with 8 GBs of RAM is more than sufficient, in my opinion.
As for the MacBook Pro, I have 2017 MacBook Pro w/out the Touch Bar and I love it. A colleague has the same MacBook Pro, but with the Touch Bar and he showed me some of the things he could do with it and it was impressive. Having said that, I'm glad I didn't fork over the extra money for the Touch Bar because I don't need it and not having it does not hamper my computing experience in any way.
Basically, it boils down to choice. Do you want the Touch Bar or not? In fact, go to a nearby Best Buy or Apple Store and test both out before making your decision.