In reply to Andre.

I don't have much experience with Joomla! But I think Joomla! for now is not better than WordPress.

WordPress is coming to a platform, where you can build an app, use WP as backend system. Joomla! More like a CMS.

I prefer old-school method of custom CSS; WordPress is famous for many reasons; plugins repo is one of that. So lets plugins repo do its job.