I think it would be cool to have the Rinnegan and have all that power and use it for good. The sharingan would be good for the good reflexes. Byakugan would be cool for finding things and the whirlwind attack.
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Rinnegan - more powerful especially if u have traits like tailed bests or a elemental combination.
Sharingan - powerful but you have to do certain things to unlock more power and it damages your eyes (does not want to be blind forever)
Byakugan - Pretty good but only if your skilled in gentle fist.
I would go with Rinnegan just becaue both Pein and Naruto have it.
I don't think Naruto has the rinnegan. the only ones that have so far possessed it are Nagato, pain, then madara after he took it.
Rinnegan, of course. not because it is considered the ultimate doujutsu, or because it looks cool, but simply because i would have the potential to learn any jutsu without limitations of chakara nature or style.
Byakugan, because being able to see through walls would be amazing for certain guys.dramallamadramallamadramallamadramallamadramallamadramallamadramallamadramallamadramallamadramallamadramallamadramallamadramallamadramallamadramallama