How do you know the larger drive is faster?You might want to anyway, the larger drive is faster and therefore will work better as swap for virtual RAM.
I hope that my Air, by nature of it being fully loaded, has the better keyboard; I didn't notice much of a difference between it and the bas MBP I tried, but it is a hair under my 2014 MBP's.I figure Ill get used to it just as I have with every Powerbook, MacBook, and MacBook Pro keyboard design Ive used (minus the scissor switch keyboard which I never bought).
I have about 60gb of files. Unlikely ill go over 100gb so there will always be 150gb free. Swap ranges from 1-4gb average.