Positive energy undead, or Deathless, who are raised by Aerenal elven necromancers, that rule over their nation and their religion as essentially living gods (They have ancestor worship).
The Mournlands, the apocalyptic ruins of Cyre after a magical cataclysm ended the Last War, where natural healing ceases to function entirely and magical healing works at half efficiency, where bodies don't decay and the bodies of entire armies of dead soldiers lie, fresh as the day they died, and mutant creatures and countless living spells roam the wastes. (The Lord of Blades lives here too)
The Dragonmarked houses - A few random people get bits of the cosmic draconic prophecy etched onto their skin as a birthmark, that happens to give some magical abilities as a side effect, instead of going out and being heroes, they decide to get filthy rich and form merchant empires that allow them to abuse their specific ability.
I could go on and on, too.
Eberron is also nice because it allows some moral ambiguity. - In Faerun, Evil people are born evil because of their species and only 1 in 1,000,000 drizzt-likes can rebel. In Eberron, a considerable number of goblins, orcs, hobgoblins, bugbears, and kobolds live and are reasonably accepted as an underclass in cities. Sure, there are still the rampaging tribes of monstrous barbarians, but they're not a 100% or even 99% rule. Without active gods, even the goodness of people worshipping an unambiguously good god (silver flame or any of the sovereign host) is not guaranteed. In fact, evil people can and do worship both, and may in fact consider themselves to be doing a greater good that the rest of their faith is too squeamish to consider
Active gods are terrible, as they're essentially omnipotent compared to you and can screw with you as much as they want, and the only reason you aren't dead instantly is plot (notice how Lolth moronically is like LET THEM LIVE when she has you paralyzed under her power the first time) They also ensure that morality is fixed - good people are always good because they worship good gods who exist and will punish any deviance from what they consider to be good.