Well I had the 2015 MacBook and absolutely loved it, for what I was doing the graphics made no difference. The tradeoffs are significant.
MBP has, better screen, better SSD speed, better graphics, better CPU, more ports etc
MB has better portability.
So really big swing between these machines. I am getting the 10.5 iPad pro, so I am also thinking is that too close to the MB?
Eldar - which MacBook are you considering. Just noticed you are using a 15 inch too - you will notice a graphics difference since you have the Radeon Graphics. OK thanks!