Surface Pro 4 intel core help!!

Hey everybody I am thinking about getting the surface pro 4 but am not sure which varient to get.

I currently have the macbooke air 11" mid 2012, i5 4gb ram and 64 gb storage.

And I want to upgrade from that I have had it for about 4 years and it is great it is very fast and has lasted me ages but recently I have noticed its slower takes longer to boot. So I think it's time for an upgrade

I want the surface pro to last me at least 4 years and be fast.

which one do you suggest

128GB / Intel Core m3 - 4GB RAM*-*AU$1,079.20
128 GB / Intel Core i5 - 4GB RAM*-*AU$1,181.00
256GB / Intel Core i5 - 8GB RAM*-*AU$1,616.00
256GB / Intel Core i7 - 8GB RAM*-*AU$2,011.00
256GB / Intel Core i7 - 16GB RAM*-*AU$2,263.00
512GB / Intel Core i7 - 16GB RAM*-*AU$2,768.00
1TB / Intel Core i7 - 16GB RAM*-*AU$4,199.00

I don't really do anything intense on my laptop I just surf the web watch movies go on YouTube download movies and yeah and might play a game every now and then like Minecraft or something but I can't run Minecraft on my macbook and it over heats within 5 minutes and shuts off thanks

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