That will depend on the price range. You have asked two different questions, one being Preston Hollow and the other being Frisco. You can publicly access the crime stat's for each city on that city's website.
In Frisco, Starwood is considered exclusive and has homes in the $1-2MM range and under.
Also, In Preston Hollow, there are a few build's which have been on the market for quite some time, and likely have motivated builder's ready to sell to an able buyer for a great price! When entering te courtroom, you always want experienced representation, just like when you buy a home, your making the most important decision in your life as an investment, My service's are valuable and they are paid for by the seller.
Why not hire a REALTOR like myself who sales homes everyday, to help you make sure all your questions are answered and know you made the right decision? I care and am here to help!