It seems that editors were big on debating data at the site. Many religious subjects, such as Jesus and God, were universally debated. Researchers from the University of Oxford and three other institutions analysed logs of the changes made to Wikipedia pages to identify those in the throes of an "edit war". Such a conflict involves editors of pages making changes that are almost instantly undone by another editor.
These are the top 10 touchy topics:
George W Bush
The Prophet Muhammad
World Wrestling Entertainment employees
The United States
Race and intelligence
Pages that get updated a lot might just be about a rapidly changing field or topic, they said. It looks like pages about Israel, Adolf Hitler, The Holocaust, God, Jesus, the Prophet Muhammad and Christianity were the most regularly fought over by editors.
However there are some more local controversies such as the case of the page French politician Segolene Royal which was argued a lot about in the French edition.