Welcome to the forums, If you read the many replies to this or similar questions, you will have seen the answer,
There is NO best distribution, only the best for you, the one you like the look and feel of, the one that allows you to do your daily task in comfort and the one that works best on your machine.
So please give us a bit more information, what is your machine [make and full model number] what are your main tasks
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I would recommend Mint or Ubuntu also. But if you have a few 4gb USB sticks you could try several live sessions and see which one works best on your hardware and suit your tastes.
Probably best to avoid rolling release distros and stick with stable long term support (LTS) releases from Mint, Xubuntu or Ubuntu MATE. To me. Ubuntu itself seems a bit of an odd-ball on the desktop due to its Gnome 'smartphone style' interface.