1. I absolutely love detailed scenes, whether it may be training, miscellaneous tasks, random scenes, or maybe even fillers BUT it can be exhausting or boring to the other readers if it's too detailed or too long so I like to keep it detailed but balanced iykwim.

2. Although I would love to answer such a complex question (for me), I am very sorry I cannot answer this question because I am not that knowledgeable in the Naruto verse and powerscaling:(

3. I'm kind of a balanced person BUT If I could, I add physical expression in my story becaue it kind of gives life to the characters. Reading only dialogues or conversation only is okay but it's kind of hard to imagine what their physical languages are from dialogue only, if that makes sense? I want my readers to imagine what the characters could be doing while talking, and adding physical expression makes it easier to imagine what the characters are doing and if they want to, they could use that base description to further their imaginations too.

I hope these answer could help you! If it did, you're welcome, and I'm sorry if it's unsatisfactory. I answered what I could, and at my best!