The combination of two different and popular universes like Naruto and RWBY is exciting. When a fanfiction is powerful, it often means the characters have enhanced abilities or face greater challenges. For example, seeing Naruto's jutsu in the RWBY world or RWBY characters learning chakra control is really cool.
I think Qrow could be really powerful in a RWBY x Naruto fanfusion. He has his own set of skills and if he were to learn some of the more powerful jutsu from Naruto, like the Rasengan or some of the more advanced sealing techniques. His experience as a Huntsman and his natural combat abilities would be enhanced greatly. And Weiss with her Glyphs and if she were to learn some chakra - based techniques could also be a very powerful combination.
It's hard to say. Naruto has his powerful ninjutsu like the Sage Mode and the Nine - Tails chakra. But Salem has her own dark magic and immortality. If Naruto can figure out a way to counter Salem's immortality, he could be very powerful against her. However, in the RWBY world, characters like Ruby with her silver eyes power also have the potential to be extremely strong. So it really depends on how the story is written.
You can start by looking on fanfiction.net. It has a vast collection of Naruto and RWBY fanfictions. Just use the search bar and type in relevant keywords like 'powerful Naruto RWBY'. Another good place is Archive of Our Own (AO3). It's known for its diverse range of fan works.
I think Naruto Uzumaki combined with Ruby Rose could be extremely powerful. Naruto has his vast chakra reserves and powerful jutsu like the Rasengan. Ruby has her super - speed and the ability to use her scythe, Crescent Rose, with great skill. Together, they could be a force to be reckoned with. Naruto could use his clones to distract enemies while Ruby zooms in for the kill.
You can start by looking at popular fanfiction websites like FanFiction.net or Archive of Our Own (AO3). On FanFiction.net, use the search bar and type in 'Naruto RWBY' to get a list of relevant fanfictions. AO3 also has a great search function where you can narrow down your search by tags such as 'crossover' if you're specifically interested in stories that combine the Naruto and RWBY universes. Another option is to join Naruto or RWBY fan forums and ask for recommendations on good Naruto RWBY fanfictions there.
In some RWBY fanfiction, Ruby herself might be depicted as an even more powerful warrior. For example, she could have enhanced her silver - eyed warrior abilities to not only freeze Grimm but also control them to some extent. This would make her an extremely formidable force in the fan - created stories, as she already has great combat skills and leadership qualities in the original RWBY series.
I think Weiss might be the most powerful. Given her intelligence and magical abilities in RWBY, she could easily understand the complex mechanics of Pokemon training and battles. Also, she could potentially use her Glyphs in creative ways to enhance her Pokemon's performance in battles.
In a fanfiction, their relationship could also be explored in terms of leadership. Naruto has led his team in many battles and has a sense of responsibility towards his comrades. Raven has her own group and her own way of leading. They could compare and contrast their leadership styles. Maybe they would have some disagreements at first, but as they get to know each other better, they could find a middle ground and lead a combined force against a greater threat in the RWBY universe.
Yes, there could be. Fanfiction often combines different universes in creative ways. It's not uncommon for authors to take a character like Naruto and place them in a different role, such as a singer, within the world of RWBY. There are countless fanfictions out there, and with the popularity of both Naruto and RWBY, someone might have come up with this interesting concept.