Restore via settings or via iTunes?

[Eldiablojoe]

Okay, sorry to resurrect an already beat to death recently topic, but I recall the threads having various opinions on the thoroughness of personal date wipeout when accomplished via just the iPhone's settings vs. the restore function of iTunes. Thoughts?

Now that I have my iP4 setup and synced through iTunes, I'm a bit hesitant to restore my older 3GS prior to selling because I don't want to mess up the settings and backup in iTunes of the iP4.

Thanks!

 

[Eldiablojoe]

^bump