Ghosts? like the ones that have intangibility, invisibility, and possessions?

Yes @Neosaiyan7

Demons kind of have this too, so it will depend a lot on the ghost and demon in question.

We are just relying on the common tropes in fiction, religion, and any other mythology or folklore, so we truly don't know what they are capable of then, and not just that, a random soul could be stronger than an average demon.

Man,i voted more for the averange devil being stronger than the average soul.

Demons live to torture souls, don't they?

Demons are almost always depicted stronger.