I just received a fake Otterbox from Amazon yesterday. I will be returning it before heading to Best Buy to buy a real one.
I'm curious, how did you know it was a hands down fake?
I'm sure it's possible one out of the 6 I've gotten from Amazon are not real & I didn't notice.
Fake ones don't have Otterbox stamped on the inside of the plastic shell. See picture.
Fake ones don't have the numbers on the silicon. See picture.
Also this YouTube video is a good way to spot a fake vs a real Otterbox
FAKE vs. REAL OTTERBOX DEFENDER FOR IPHONE 4 REVIEW - YouTube