ReReplaced - Friday, December 22, 2017 7:35 PM
My vote would always be for the latest version simply because you get to use much better features and a lot more powerful database engine. So, I would suggest, go for SQL 2016 ( or if possible SQL 2017 as its already on GA).
Need to be just aware that standard edition comes with resource limitations ( Max: 128 GB RAM, 24 core processor ).
Main item to think about is if the application would support SQL 2016 or SQL 2017.
Regards,
Raj