What a coincidence. There are a whopping 24 standard keys to choose from, and we have the same favorite. Of course, in a world with things like the Birthday Parodox, that is perhaps after all not so surprising.
It's extremely nice having perfect pitch, isn't it? They say it's a curse, but it's the difference between hearing in black and white, as normal people do, and hearing a whole spectrum of colors. In truth, I can't fathom how ordinary people hear. Apparently, they hear structure--intervals--but do not associate particular notes and keys with any unique qualities. I always wonder how they can even perceive a key change. To me, a change of key is, for example, like going from yellow to purple. But they evidently do not have that experience--for them it's purely about the intervals.
I took a genetic test recently which showed that I apparently have heightened musicality from distant Finnish ancestors. I wonder if this is where I get the perfect pitch from. I am not Asian, to be sure, so it isn't related to having Chinese ancestry (Chinese people have a very high rate of perfect pitch, probably due to a mix of genetics and the nature of their language).