Eh, well...unfortunately that source is a Wiki site, so anybody can add to and/or change things on it. So I wouldn't credit the site with too much accuracy.
Yeah, basically Wolverine might get in the first shot, just cause he'd fight dirty, but then Superman would pretty much just turn him into a pretzel.
(or alternately he would end up doing what Hulk did to Wolvie in the World War Hulk X-Men books. Beat him until his brain was so bruised from rattling around inside his skull that he passed out.)
