imo the best written characters would be nagato obito and gaara...sorry i didnt go with the thread i.e 5 buh this three characters background story actually dhu beat all d others....the other day i was explaining d whole naruto series to my girl n i swear tears dropped from my eye when i reached nagato...super dynamic character,he is very much connected to every character in a way,shares the same master with the main protagonist,had a really shitty background...aside from getting the reningan for free,i can say he worked to earn all his villian ryt(badass)..he had a really shitty childhood,had his parents killed by the goodguys,lived in isolation with yahiko and konan until jiraiya helped and trained them....lost yahiko to a silly dispute... i just love his character and his craving for peace(despite his means)..killed his own master without remorse....enjoyed his very final dispute with naruto during d pein arc...his originality......then obito is rated no2 because he was used by madara even after everyone considered him the very worst villian........i dont know y no one is listing naruto tho...the guy has a pretty good background tale,despite being protected by plot,,he really worked hard for everything he has...really an interesting free spirited character....
and then the worst character i think there is is sasuke...call me a sasuke hater buh i think he has a pretty messed up story...dont get me wrong,aside from the uchiha massacre and to keep naruto busy chasing after sth,i dont think he has a reason to be on this manga...so arrogant and confused...one day he wants to kill itachi,d next day he wants to destroy d leaf village and d next day he wants to be hokage.....so damn freaking fake of a character...