When comparing Xwiki vs Tiki, the Slant community recommends Xwiki for most people. In the question“What are the best multi-user wikis?” Xwiki is ranked 13th while Tiki is ranked 18th. The most important reason people chose Xwiki is:
More than [600 extensions are available](https://extensions.xwiki.org/xwiki/bin/view/Main/).
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Extensions
More than 600 extensions are available.
Pro Playground
You can try out XWiki in the Online Playground.
Pro Hosted
Cloud and Hosted offers are available.
Pro It's a full featured CMS
Tiki supports user-account management, permission management, allows managing menus, customizing layout, etc.
Pro Bitnami stack
Bitnami stack available for Cloud or install as Virtual machine.
Pro Lots of built-in features
Tiki includes tracker, chat, newsletter, forum and much, much more functionality out of the box.
Pro Free and open source
Tiki is licensed under LGPL.
Pro LDAP support
Pro Upgrades are smooth
Because all features of Tiki are supported by core developers, compared to a model where the wiki relies on third-party extensions that may or may not get upgraded along with the core codebase, the upgrades are a lot easier.
Cons
Con No SQL Server support
Con Can feel bloated
Since there's so much stuff in Tiki already built-in, it can be overwhelming if all you need is a simple wiki.