Team Evelynn (LoL)vsTeam Volibear (LoL)

Team Volibear (LoL) Although as a Primordial Demon Fiddlesticks is the strongest one here, the other three demons would just individually be some levels weaker than the demi-gods with Nocturne especially so being a weak link, alongside this the demi-gods also just have a lot more experience in direct combat and better teamwork as Ornn, Volibear and Anivia used to work together and are siblings, while the demons are only somewhat aware of each other and Fiddlesticks also probably isnt smart enough to properly work with his team.

So with that in mind, imo Team Demi-gods would eventually win, definetely far from easily though.