Rincon is also nice and pretty much what you would expect from Harrah's. It's one of the nicer casinos with many restaurants and a decent buffet. Pechanga is right off the 15 freeway so it's the easiest access, but they have much higher limits on their table games and most of their video slots are nickles or higher.
All of them except Pechanga are actually on the same general highway. Others include Pala, Pauma, Valley View, and Pechanga. Harrah's Rincon is only one of many casinos in that general area.