Main Ringtone = "Battle without Honor or Humanity" by Tomayasu Hotel, also known as the "Kill Bill fight sequence theme song" I really like how the sound automatically increases as more instruments are added to it, makes a perfect ringtone that starts out subdued then gets LOUD if you don't answer it.
House Ringtone = "Sweet Home Chicago" by the Blues Brothers. I live there, it fits.
Kids Ringtone = "Sweet Child 'O Mine" by Guns 'N Roses
None of these are 'stock,' I created them all in Garage Band and fiddled with the bass quite a bit to ensure I got rid of that low end buzzing sound so common with iPhone ringtones that aren't optimized for the little speakers.