Best/Easiest Way to Transfer from one One to another One?

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http://forums.androidcentral.com – Taking delivery today of a Stealth Black One and giving my daughter my Silver One since she cracked the screen on the first One I bought. What is the best/easiest way to transfer everything from One to One? Option I know of are: 1. HTC Sync 2. HTC Backup 3. Helium Any thoughts?(non-rooted) (HowTos)