I am a big fan of Pioneer and Alpine but the new Kenwood *120 and *12 DD units are impressive.
Alpine IVA-W505 in the 07 F150 (best unit I have ever used)
Alpine IVA-W205 in the Mustang (second best)
Kenwood DDX-7017 in the 97 F150 (ipod control is only flaw, treats it like a changer but...