I use the Meguiar's NXT Generation Tech Wax 2.0
It's not cheap though.
I haven't had any problems with it, and have always had good results. Granted I do use automatic car washes, and I don't do the pressure wash thing... it's just not needed around here as they wouldn't know how to salt or sand the roads (even if they had the equipment, which they don't).
Here's an older pic, just after I brought my '10 home and got it cleaned up.