collin
Explorer
I've never used a campaign setting, so I really just care about the materials each one offers that I can use in settings I make up.
1- Ebberon, for the artificer class
2- Dark sun, if it includes psionics maybe I'll actually try them out this time
3- Ravenloft, because although I know next to nothing about it what I do know sounds cool
Mostly Ebberon, though.
I totally agree.
I think we will always have Greyhawk as a default setting, and Forgotten Realms is a no-brainer. Eberron is my preferred choice for an upgraded 5th edition setting, too. I would probably favor Ravenloft over Dark Sun.