Demons and Devils as Gods

This is one of the few things I believe 4e got right. I love the idea of using Asmodeus and Orcus as gods in the world. It makes them seem much for powerful and influential, which is a good thing.

Before, there was this heirarchy that demons and devils were really dangerous and evil, but still not quite as powerful as the various gods. So in a way, just not as scary. Making them gods levels the playing field, because it makes the players realize they just aren't going to be able to finally and definitively destroy Asmodeus and Orcus, no matter how powerful they get, unless they themselves achieve godhood. Even then it would be really hard for them to defeat the two.

In any world I run, gods are pretty much unkillable, just like they were presented in Planescape. It makes a heck of a lot more sense to me than the 1e version, where any high level group can go god-hunting if it wants to. Granting this ability to the lords of the Abyss and the Nine Hells seems like common sense to me.

This also makes the formation of cults make more sense, as the bad guys will actually be granted spells by their demon patrons. Before, they had to worship a different god, and also follow their demon of choice. This fixes that issue.