Tell me 2 or more characters to fight each other and I will calculate who wins by analyzing their strength, speed, durability, iq, weapons, powers, hax, skill, etc. Some popular battles would be Goku VS Superman (depending on which version of Goku or Superman, it could go either way), Naruto VS Luffy (Luffy wins mostly due to Gear 5), or Sonic VS Mario (Most versions of Sonic should be able to beat most versions of Mario, due to the Sonics' massive speeds).