First off, Ugatha, your car is absolutely beautiful. I was never a big fan of Arena Red but your photos have me coming around.
Secondly, I have owned both a Boxster S and 2 Miatas, completely different vehicles and IMO the Boxster is far superior in every regard in terms of handling, braking and power. Given the price differential it ought to be.
One thing I absolutely love about the Miata though, you can twist the nuts off of it without getting into stupid / unforgivable speed territory, to say that they are a hoot is an understatement. To be able to modify or fix them for a mere fraction of the cost of anything with a Porsche badge is an absolute bonus........