One of the most important things you should consider, even above feature list, is your users' familiarity to the wiki software. Almost everyone is at least fami

One of the most important things you should consider, even above feature list, is your users' familiarity to the wiki software. Almost everyone is at least familiar with mediawiki's reading interface (if not basic editing) because of wikipedia, so if you're starting a wiki that is going to have any appreciable amount of users, mediawiki is almost a no-brainer.