I agree with joebobodo. I'm playing in a War of the Burning Sky campaign currently, and I think the design is terrific. (We're in the middle of the second module.) While it has interesting story and characters and role-playing and stuff, it also has some really well-designed fights. At the end of each of the last two sessions, I decided to try to copy one of the encounters for the game I'm running because they were great fights with interesting tactical stuff.
Depending on your burn rate (i.e. how quickly you get through modules), you might be able to play through the whole campaign without waiting, because new modules will be out by the time you finish the current ones.