Deluz is bordered by Camp Pendleton to the west, Temecula to the east, and Fallbrook to the south. It you’re looking for a quiet, upscale area of estate homes and ranches, it’s a great area. I believe that Malabar Ranch is in Deluz. The only area that Fallbrook is really lacking in is their public education. (I’m a college professor and send my daughter to a nearby private school.)
The biggest problem I foresee with Temecula is the growth and traffic. The poor road planning and huge indian casino have made a mess of traffic on the south end of town. For convenience, Santiago Estates in Temecula is very nice, and close to the freeway, but you run the risk of having a million dollar house overlooking Walmart and apartment complexes, or backing up to a self-storage complex and mega-church. We lived very briefly in on the Temecula/Murrieta border, and it took me 20 minutes just to get to the freeway five miles away. Fallbrook people love Temecula because there’s plenty of shopping nearby, but most wouldn’t consider living there. It’s primarily younger families and stucco tract homes. It’s a perfect family community though – with lots of parks, events and activities for young children. Compared to Fallbrook, there’s just way too many people. I commute from Fallbrook to Temecula every day, and even against traffic, it’s still a pain.
If you’re interested in Fallbrook, consider reading the Village News – it’s the local newspaper and I think they have an online version.