They are NOTHING alike and you know it. The tone alone is miles apart.
Ask a marketing expert if those ads are the same and they'll laugh at you long and hard; that's how much they are dissimilar.
Strange, I see all those Android fans just come out of the woodwork on Apple forums ever single launch (and just before).
----------
Again, ask a marketing expert if that's true that they are the same if you dare; they will pointedly tell you that NO they aren'T the same at all. I'm a bit of tired of this trope when it doesn't match reality at all.
I'm a marketing expert and I concur that the tone makes them different. Many people actually loved the PC guy in the Mac ads and found them cute.