Lately I've been splitting time between issue #5 of the Manor and developing a campaign setting and a ruleset to go with it. Most of what I'm doing with the ruleset is a pick and choose of what I like from other systems. The most mine in the creation will be the class concepts based on the culture they come from. Even then I am stealing from every article/supplement/post I can find. There is no shortage of class variant information.
The world itself will be about 80% mine and 20% borrowed. This will help with time on my part and because people have better idea than I do at least explain them better. So if you find a great concept why try to over think it. Use it. I've started building my campaign influence page. There will be blog posts, articles and products I am using. I'll write a few sentences to describe how I'm using it and/or why I like it.
So my question to you is do you have a favorite campaign setting? Homemade? Canned? Fantasy? Cyberpunk? What setting gets you to salivate?
Without a doubt mine has been Judge Guild, City-State of the Invincible Overlord. Primarily because +Rob Conley has run me through his campaign world through the years. I enjoy wandering the streets of City-State because I always seem to find new things and get into the same old trouble. It's a blast. In addition I know the history and understand the interaction between cultures and classes and a bit of the history. Some of the old characters helped define some of the history.
So what is your favorite setting?