He was struggling with a very large conger, and holding fast with one hand to the side of the vessel, in order to seize with the other the gaping jowl of his antagonist, when the master said to him, Take care they don't see you from Belle-Isle.
In Naruto each base-element is stronger and weaker than one element:-. Fire: strong against Wind, weak against Water. Wind: strong against Lightning, weak against Fire. Lightning: strong against Earth, weak against Wind. Earth: strong against Water, weak against Lightning.
Naruto and One Piece are always competing with each other for that No. 1 position in anime/manga sales ranking. So, in this manner they can be called as the best anime rivalries. Otherwise, fans are always fighting over which of the two is more legendary anime; Death Note or Code Geass. These are big rivals too, but just in another sense.