When comparing Markdown vs MediaWiki, the Slant community recommends Markdown for most people. In the question“What are the best markup languages?” Markdown is ranked 1st while MediaWiki is ranked 6th.
Ranked in these QuestionsQuestion Ranking
Pro Widely used
Designed to be easy for a human to enter with a simple text editor, and easy to read in its raw form.
You can convert HTML to Markdown or Markdown to HTML. You can use tools like pandoc to convert to other formats as well.
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 Great multilingual support
MediaWiki has full support for over 65 languages and partial support for over 300.
Pro Version control
MediaWiki allows viewing past revisions of pages.
Pro Runs on any PHP server
It requires a webserver running PHP 5.2 or later of any kind.
Pro Multiple database support
MediaWiki can store data in MySQL, PostgreSQL, Oracle and SQLite databases.
Pro Free and open source
Licensed under GPL.