For a permissive license, MIT and BSD are basically equivalent ([MIT TLO](http://tlo.mit.edu/community/software) recommends BSD online, but in person indicates that they don't differentiate). We recommend MIT over BSD just because much of Athena already uses it, [MIT appears substantially more popular](https://github.com/blog/1964-license-usage-on-github-com), and [Github recommends it](https://choosealicense.com/).
For a permissive license, MIT and BSD are basically equivalent ([MIT TLO](http://tlo.mit.edu/community/software) recommends BSD online, but in person indicates that they don't differentiate). We recommend MIT over BSD just because much of Athena already uses it, [MIT appears substantially more popular](https://github.com/blog/1964-license-usage-on-github-com), and [Github recommends it](https://choosealicense.com/).