Octopus in the shallow sea, the largest individual is only more than one meter, squid mostly in deep water, only spawning to shallow water, giant squid (king squid) even in the deep sea more than 1,000 meters, it is estimated that the length of the length can reach more than 10 meters, once saw the body of 8 meters long was washed up on the shore, it is said that the large size of the king squid and sperm whales can even fight and not lose

So on the combat power should be squid stronger.