Other
IMC, "gods" don't have the same role they do in normal settings... IMC, the gods may or may not exist... no one can PROVE one way or another. Priests, Druids, Mages, Hedge Wizards, Paladins, etc etc all draw power from the same source. There are only two magic using classes IMC, at least for humans (Wilder and Initiate from Wheel of Time are what I use). A "paladin" is a warrior who has a few levels of one of those classes.
Priests and Paladins would claim their power comes from their god, a druid-type character would claim it came from the earth, a hedge-wizard might have charms or similar he claims to draw power from... but it's all the same stuff. Raw mana chaneled into the form the user wants it. It's just a matter of how you look at it.
Elves use what I call "High Magic", for which I use the Sov Stone rules... it provides a sense that they have some deeper understanding of it than humans... Dwarves use rune magic (customised core-class version of a prestige class in a Bastion Press book), to which they assign a religious importance, similar to human priests. But even there it's the same essential stuff... just different training to use it different ways.
*edit* I forgot to include exactly where I as going with that ramble
Anyhow, because there is no direct proof of the gods, and the fact that every culture seems to have it's own gods, religion plays a fairly important part in the WORLD view (There are religious wars amongst the humans, the dwarves have sort of "converted" one human culture to their religion, etc). However, on an individual, person by person basis, religion is actualy fairly un-important. The few priests who have any sort of magical power (Magic is very rare in my world) are very influencial... but the rest, the majority of the priests, basicly have a fairly small following. Long ago humans used to worship the dwarves and the elves, but when it was eventualy figured out they weren't gods, it took a LONG time for any new religions to form up... humanities faith was "betrayed" by their false "gods". Even now, many centuries later, people are still sceptical about anybody who claims to know a true "god". The wound is still fresh in most cultures minds.