Python is the most edited article among those six for the past two years.
Wikipedia has a quality scale, according to which, Python is best regarded.
Searching for “possible vandalism” tag in the history of revisions shows that Python is the most vandalised article.
History seems to be the most widespread tile in those articles, alongside with syntax, Implementation(s) and features
Considering that Haskell page have had the least amount of edits, it would stand to reason that it is that page that is most alike with it’s original.