The Six Paths' Of Pain wins more times than not, in my opinion.
I mean.. The Six Paths' Of Pain possesses significantly >>>>>>>>>>>>>>>>>> speed features, and destructive capabilities in contrast to the likes of Obito. I don't think that the latter can magically wrap the gargantuan Rinnegan Animals', that required an Amaterasu from Itachi, to eradicate. The Authority Of The Gods' (ie., Kamui.. ), also, doesn't wrap the castor's spirit, so soul ripping should work, in my opinion.
The God Realm's DC is way too much for MS Obito to handle, tbh.
Supplementally, I'd like to add that The Six Paths' Of Pain possesses significantly greater hype, and portrayal, so that kind of seals the deal, in my opinion.