Double Mangekyou Sharingan- Kamui that Kakashi used during the last fight against Kaguya, PROVED that that shit will be relevant forever. And not only that, it was extremely powerful, and the final uncounterable attack that staggered Kaguya enough to just be touched and sealed. And that was just regular MS used! >>>Not eternal<<<.
If you consider Sasuke's EMS or Madara's, or even Itachi's... then yeah. Rinnegan will most likely win (unless Koto is used, but that is kind of a weird outlier)
If Obito had both eyes and had them in Eternal version... Then i don't know...
He would've probably being able to own Hagoromo, and Hamura, and Madara, and Kaguya, and Hiruzen Prime, and Tobidara, and Yata Mirror (ok, now i am just trolling...)