These giant fish are definitely nothing I want to come across while swimming in South American and Chinese rivers.  The ones that will really knock your socks of are 7, 9 and 12.  The 12th one is actually choking on a fellow ginormous fish of its same species.

http://animals.nationalgeographic.com/animals/photos/megafishes-gallery/giant-eurasian-trout-megafish.html