I've looked on wikimatrix comparision for features, that are build-in (or available as plugin), and not available on another.
DokuWiki have a Access Control List, CamelCase, Windows Shares, delayed indexing, support for Markdown, Textile, CREOLE, and even BBCode. Except that it has quoting, FAQ tags, abbreviations, support for mobile devices, blogs and tickets system and svg editing.
MediaWiki's advantages: more interface languages, most/least popular sites, Recent visitors and XML exporting.
DokuWiki have a Access Control List, CamelCase, Windows Shares, delayed indexing, support for Markdown, Textile, CREOLE, and even BBCode. Except that it has quoting, FAQ tags, abbreviations, support for mobile devices, blogs and tickets system and svg editing.
MediaWiki's advantages: more interface languages, most/least popular sites, Recent visitors and XML exporting.
Spoiler :