Well what are you going to use them for? I mean Air is great, it's smaller lighter and less performance heavy than Pro, but it's missing a cd-drive so if you're going to watch movies then you need to get an external cd-drive for it. Pro is a more powerful machine and has an internal CD-drive.
I guess I could say this for Air:
+ light to carry around + just plain handy + good for normal use + cheaper than Pro
- no cd drive - not as powerful as Pro
As for Pro, I don't have much experience with it. Mainly I can tell it's more powerful, heavier, and more expensive.
Last Edit: Dec 18, 2014 12:22:35 GMT -5 by Varangian