Do you have a store you can go into? I like to see and feel things first before I buy.
As others have said retina screens are brilliant. Very clear and crisp text and images. But it’s just Apple speak for higher resolution than their initial range, see actual dpi or screen resolution and it comparable with windows laptops these days. (What ipad do you have, that may well have a retina screen?). For me the keyboard and track pad are better than any windows box I have used and I don’t use a mouse when working on a mbp compared to a windows box where I really struggle to use them without a mouse.
Performance, Accordance still runs very fast on my old mbp which is about 10 years old now. (But I have a new lighter 15” mbp ready for when it finally dies). So it will depend on what else you are planning to use but i5 should be ok unless you are planning to use a intensive piece of software.
I like big screens so tend to go for 15” for a workspace similar to michael though when reading commentaries I tend to just have text and commentary up to cut down on scrolling as it’s easy to switch resources. But I do tend to do most of my work on an iPad now and use the the full version for analytics or those bits not available on iOS.
It so depends on what you want to use it for, lots of travelling (smaller may be better) , mainly using on your lap (15” screen may be better) or mainly using on your desk (consider a full screen Mac?) supported by your chrome for travelling.
Edited by ukfraser, 03 April 2018 - 04:58 AM.