The best ringtones are rocking ringtones. When my phone rings I need everyone to hear something cool/funny, not something polyphonic, damn it!
From silent ringtones that are meant to be heard only by dogs to silent ones for clubgoers, we have it all in this cluster. If you want to hear some more rocking ringtones, I suggest you stay put and set your brains to stunned.
Implications - The best ringtone found on this list has got to be the communist ringtone, which the Chinese government has implemented onto Chinese cell phone users. Who doesn't want to be alerted about a call by a patriotic Chinese tune?