Having used both, while I do prefer Django for my own projects, Ruby on Rails has a fancier welcome page. Sorry, it had to be said :D.

If they were really smart they'd include a picture of Reinhardt the Awesome and some wicked jazz music, plenty of both to choose from! It'd probably quadruple the size of the framework tarball, but to borrow a phrase from my sister "it'd be SO worth it!" Am I right? Don't answer that.