Naruto/Bleach Quick Training = OP/No focus on Characters

Talking about those big animes right now. This pisses me off in an anime. Naruto for example, he trained for a few days and suddenly hes the strongest in the fcking planet. Stronger than people that have trained their whole lives. Theres also Ichigo in Bleach, He trained for what? Maybe a week? And he started kicking the main boss ass like it was nothing. It's stupid I also hate when they focus only on the MC. Latest Naruto episodes and Bleach do this. They introduce Sado, Ishida(Ithink thats his name), and Orihime. But they dont explain why they have their powers, their origins, or even give them enough screen time to flesh them out. Naruto turned into him just fighting everyone and not giving a chance to the other kids to have their own bad ass fight scene.

that's why i don't watch Naruto or bleach the characters become op and all of the sudden win every fight. not to mention the whole goal for Naruto was to become hokage i don't know if he ever did since i dropped it right after starting shipuden, because that was a load of crap and i don't even know what the point of bleach is