Ranked in these QuestionsQuestion Ranking
Pro Behaviour Driven Development focused
If you prefer your test cases and application to be developed from the perspective of your stake holders, Jasmine is the framework for you.
Pro Has a very readable and user-friendly syntax
Code readability is an important factor, if the application development involves multiple teams; if the testing team is unable to read your test cases then they won't be able to test it. Jasmine resolves this issue by providing developers with an extremely simple and "human-friendly" syntax.
Pro Allows both DOM-less as well as Asynchronous testing
If you have some test cases that do not involve testing of DOM elements or events, those are exactly the ones where you want to use Jasmine. It'll provide smooth, simple and easy DOM-less testing of those test cases.
Pro Integrates very well with Ruby on Rails
The jasmine-rails gem allows you to run Jasmine specs in a browser (powered by Rails engine mounted into your application).
Pro Easy to find Jasmine tutorials for most MV* frameworks,
whilst Mocha is still considered the new kid on the block.
Con Paul is right in that
Pivotal aren't responsive to pull requests, though they have made repo changes within < 3 months