When comparing MediaWiki vs Org-mode, the Slant community recommends Org-mode for most people. In the question“What are the best markup languages?” Org-mode is ranked 1st while MediaWiki is ranked 8th. The most important reason people chose Org-mode is:
Org-mode is characterized by a flexible and versatile system with adaptability to different workflows, making it comparable as an Evernote alternative. It is at once simple and complex., which helps it to compete as an Evernote alternative.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro The de facto standard
Mediawiki is a widely used wiki engine. It is used to power Wikipedia and thus most people will be more comfortable/accustomed to using MediaWiki.
Pro It has a powerful templating system
Pro Free and open source
Licensed under GPL.
Pro Version control
MediaWiki allows viewing past revisions of pages.
Pro It has a usable WYSIWYG editor
Pro Thanks to Wikipedia it is thoroughly documented
Pro Runs on any PHP server
It requires a webserver running PHP 5.2 or later of any kind.
Pro Great multilingual support
MediaWiki has full support for over 65 languages and partial support for over 300.
Pro Multiple database support
MediaWiki can store data in MySQL, PostgreSQL, Oracle and SQLite databases.
Pro Very flexible
Org-mode is characterized by a flexible and versatile system with adaptability to different workflows, making it comparable as an Evernote alternative. It is at once simple and complex., which helps it to compete as an Evernote alternative.
Pro Built-in agenda
Org-mode has some built-in agenda functionality. You can schedule tasks and assign various degrees of importance to each of them. Org-mode agenda can also be synced with Google Calendar.
Pro Versioning can be tracked and synced using Git or other VCS
Org files are plain text, and lend themselves well to version control. Emacs also has good integrations for various VCS.
Pro Great sync support
Notes and to-dos can be synced with Trello, Toodledo, Simplenote, Orgmobile, or with tools like Git on Github, Dropbox, Google Drive, and Bitbucket, while WebDAV (with iOS and Android) can also be exported to PDF, mind map, LaTeX, HTML, Docbook, or txt.
Pro Basic spreadsheet functionality
Org-mode has some basic spreadsheet functionality. Other than auto-formatting ASCII tables (a notoriously annoying problem), it also has support for LISP-like syntax to define equations or any other functionality that can be achieved through spreadsheets.
Pro Out-of-the-box Latex support
Org-mode has out-of-the-box support for Latex: it can immediately parse equations (or other Latex markup) and can even compile notes to PDF or HTML.
Cons
Con Access control requires an extension
There is no built-in access control, but you can download an extension for ACL.
Con Difficult to learn
Org-mode has a difficult learning curve since you have to learn all the keybindings and commands. It's especially difficult if you are not used to Emacs.