Howdy everyone,
Just wanted to pass this video along, see below for link. A website called ScrewAttack created a show called Death Battle where they pit famous comic book, TV show, video game, etc. characters on a 1 v 1 fight to the death. They analyze just about everything for each character from speed, strength, durability and more from any official source for the character. So if you ever wanted to know who would win in a battle to the death between Goku, from the Dragonball series, or Superman here you go.
http://www.screwattack.com/shows/originals/death-battle/death-battle-goku-vs-supermanThe answer just might surprise you as well as the level of research.