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I would have to agree with
@Rob Phillips, I think the Macbook Air would definitely be a better choice. While the iPad Pro is awesome to own, there are just certain things you cant do on it since it runs a mobile operating system (IOS) vs a Desktop OS like macOS Sierra.
I also prefer the keyboard on the Macbook Air vs the Smart keyboard case you can buy for the iPad. Hope this helps you with your decision. If you need anything else, just comment below and we happy to help!