I've driven an '05 (current generation) Boxster on a few occasions -- even back-to-back with my MX5. Aside from them both being small roadsters known for their handling prowess, the superiority of the solidity, sound (and yes, torquey pulling power) of the Boxster (even in non-S trim) is like night and day.
For anyone who turns their nose up to a late model Boxster, I can only assume they've never reached to the left, turned the ignition, powered down the top and then driven off with the boxer-engine music singing away behind their ears. To truly love it is to have experienced it for yourself. It's not the fastest car out there (though plenty quick enough), but it just does everything so well, it's a truly awesome machine.
Porsche. There is no substitute.