I like Trello. It is my first choice when I plan any kind of activity or todo list. A lot of people think so too, for example the Meteor Roadmap uses a Trello board. Unfortunately having a board view does not allow you for easy sorting on various criteria.
Recently I prepared a lightning talk on localization of Meteor apps. This topic is still in its infancy and very few really helpful information is available on the subject. Out of curiosity I wanted to see how much interest the i18n topic had compared with other items, scheduled for an earlier release. Bascially I wanted to measure whether the things coming up next on the Roadmap are actually the ones with the most votes and/or comments, or whether postponed items such as i18n had actually a much higher demand.
The Trello API, or more specifically client.js, was not too helpful for me. It made things very complicated for a n00b such as me. I decided to use plain calls to their RESTAPI instead. Together with some Twitter Bootstrap magic and the finishing jQuery touch I came up with trello2datatables. You can view any Trello board you like, but it defaults to the Meteor Roadmap.
Check it out at lab.yauh.de/trello2datatables.