San Diego County is really diverse. My advice would be when you do come down here to rent for a few months or maybe a year. Your locale will depend on where you work, what sort of commute you want to tolerate, and most important the community you enjoy the most. (Of course school and other factors if you have kids) Obviously it doesn’t hurt to look on line and stuff. However I would not make any hard and fast opinions on your future neighborhood until I really experienced them first hand.