Re: Longest you have ever played video games for?
Would sometimes play GTA 3, Vice City and San Andreas from around 9am - 4/5am, so up to 20 hours, only stopping for food, drink and toilet breaks.
Closest I got to that were ISS Pro Evolution/Pro Evo multiplayer sessions with friends which would last all night, sometimes from 7pm - 10am the next morning.
Rarely play games for more than a few hours at a time now.
Past: Bret Hart, Rick Rude, Curt Hennig, Terry Funk, Rob Van Dam, Jake Roberts, Edge
Present: Shinsuke Nakamura, Hiroshi Tanahashi, Daniel Bryan, AJ Styles, Young Bucks, Brock Lesnar