iMore

I have iPhone, IPad and PC. When syncing to iCloud, which is the "master" device? I ask because I have separate contacts, bookmarks, etc on each and for now I'm keeping them separate by having the correct toggles turned off. BUT if I wanted to get them all on the same page, which page would they be on? The iPhone, the iPad or the PC? Is there a way to tell each machine "sync to IPhone" for example.