Board Thread:Lore Discussion/@comment-116.102.112.51-20161213140036/@comment-173.81.113.240-20170127215951

It mainly depends on which Daedric Prince and what arena the heroes would be fighting in. Daedric Princes are unable to utilitze their full power while in Mundus (the nine planets created by the Aedra, later known as the Divines) but even then, they are extremely dangerous opponents.

Lets look at the heroes for a moment. Nerevarine defeated the false Triburnal, powerful god-like beings who had the ability to banish a Daedric Prince as powerful as Dagon back into Oblivion. Mind you that it took two of them (Almalexia and Sotha Sil) working in conjunction to achieve that outcome. Hero of Kvatch defeated the Daedric Prince Jyggalag, lets remember that the guy had lost most of his power as a result of not having a realm so he had to conquer the Realm of Madness every era but even then the Hero had to mantle the madgod to have the power to confront him. The Knight of the Nine version of him, despite having some power of the Knight of the Divine doesn't make him strong enough to defeat a Daedric Prince. And finally the Last Dragonborn, though very powerful and possibly the strongest out of the bunch, he doesn't have enough power to go up against a Daedric Prince and I do not believe has ever face one. Though having faced dragons, they are a bit more than a far cry from a god-like being like a Daedric Prince. And before anyone says anything, Aludin is a god-like dragon yes but that doesn't mean he has the power to actually go up against a Daedric Prince, he can destroy worlds like Nirn but that is something Daedric Princes tend to do on a regular basis.

Chances are this, if they face the Daedric Prince in its home realm, they are majorly screwed over especially since they do not have the Amulet of Kings which is the only way that the power of the Divines can be channeled to allow their interference and strengthen them to the point of being able to harm and defend adequately against them. If they face the Daedric Prince in nirn, they have a much better chance of defeating it but it will take a lot of damage and most likely all three would probably die from exertion of the battle after the Prince in question is defeated or banished back to Oblivion.