MacBook Air :: Rev A SSD (1.8GHz) Vs HDD (1.6Ghz)?

I just got a second Macbook Air that is Rev A SSD (instead of Rev B... But at least screen is flawless...) And since I still have HDD Rev A at hand as well, if anyone is interested in asking me to do some kind of benchmark one wants to try, now is the time. (I usually don't do much of these stuff, so tell me exactly how I can do it.)

I wouldn't be holding the HDD in about 5 days, so, I can only do it in those days.
So far I like the app icon only bounce once for most of the app's initial launch.