Dark Sun versions

[Voadam]

I vaguely remember hearing that 4e incorporated some 4eisms like dragonborn being the later 2e dragon people dray creations of Dregoth.

 

[Alzrius]

Plus, descriptions of specific locations are more evocative, and less like "There are 50 mul guards here and 25 halfling scouts and 10 half-giants." The 2e version is full of those kinds of misguided specifics—maybe because it was also pushing their minifigs wargame rules.

To be fair, Dark Sun was originally developed with mass combat as a prominent factor (and it really makes a lot of sense within the context of the setting, too). I think that the 2E version dovetailed nicely with how PCs were expected to gain followers at later levels; it's just that a lot of tables had long since moved away from anything domain-related by that point (which I think is a shame, but c'est la vie).