Samsung is copying the "I'm A PC, I'm a Mac" campaign. But to make this work, you need two things: a killer service that isn't well-known, and a disgruntled community of users of your opponent's service. Apple fans are fiercely loyal, so you won't be winning them by mocking them or disparaging Apple.
First focus on making everyone see how good your stuff is. When Apple fans are revolting en-masse you may finally be able to mock Apple and get away with it. At this stage, you're just pissing them off.
If I personally went for another Android device, it'll be stock Google or Sony, or maybe even HTC. Samsung will not be getting money from me soon.
There are some here that argue that all the apple bashing ads are aimed at those who are on the fence and they're not looking to convert users.
Seems silly to spend billions on a campaign that is aimed at fence sitters but Samsung has never been accused of being smart.