Don't really hate anyy of those I actually enjoy flashbacks and talking as it explains the story. But there are really only three things I hate about Naruto:
1. Naruto constantly spamming Rasengan, I mean come on teach him a new element like water or something
2. how long pointless chapters can be dragged on for.
3. how short chapters can be I wish all chapters were at a minimum of at least 20 pages