So now that WoTC has put out 4 official campaign worlds (Dark Sun, Eberron, Forgotten Realms, and the Nentir vale)which one is your favourite. Which ones have they gotten right and which have they gotten wrong? I've done a campaign in Eberron and one in Dark Sun, and I have to say that I lean more towards Eberron. I find it very hard to run Dark Sun. The lack of magic and metal get to me. I feel restricted. Eberron, on the other hand is so high magic that I feel like I can do anything and it is plausible. Anyone else have a favourite world?