I would say that is Community Central with a total of 77,472 pages up and running.
There are many wikis with more pages than that.
Community Central even has more pages than that: Special:Statistics
But I'm not sure where that number comes from, since http://lyrics.wikia.com/Special:Statistics says there are 1,811,025 content pages, with 2,440,092 pages in total.
But lyrics.wikia is largely created by bots who harvest lyrics from all over the web. I tried helping out by sorting their mess once, but the bots just recreated the things I fixed, so I gave up.
edit: And that's only looking at EN wikis.
http://respuestas.wikia.com/Special:Statistics says there are 1,638,715 content pages, with 3,006,231 pages in total. - which may or may not be more than lyrics.wikia, depending on the accuracy of the numbers.
What do you think?