Seriously, they all have "My corporate daddy is cooler than your corporate daddy" vibes. Real sad, brainwashed consumer energy.
It's because they were raised by commercials and never learned what an actual personality is
fun fact
The funny thing is that the "I'm A Mac, and I'm a PC" ads didn't work as well as Apple wanted because in every place they did it, they made the PC actor someone who resonated more with the audience, while they picked 
for the Mac actors
Hell, the British version had the two guys from Peep Show and they made Jezz the Mac guy