Great comparison/experiment! Thanks for sharing!
My old roommate has a 987.2 boxster and I feel my BRZ is more playful and more enjoyable. I prefer it. However, the sound it makes....ooooooo I want.
That said, I also drove a 981 Cayman on a twisty road, and at the time I swore to myself I would have one at some point. It was (5?) years ago now, so I don't really remember any details about how it felt, but I do remember coming away from the experience with "the fiz" and an insatiable desire to own one.
Maybe you should re-do the experiment with a 981 and report back.
