When I started shaving my head, I used the Mach 3... it definitely was a good shave!
I saw an ad somewhere on the 'net one day about the Headblade... figured it was a gimmick, but decided to try it out. Picked up the "classic" (which I still have in an honored place of reverence) at the local Rite Aid. Needless to say, I've never looked back... Always a great headshave with the Headblade!
I don't use the Headblade cartridges though... I use the Atra Plus.
Since that time, I switched to the Fusion for my face. Still top-notch in my book....
I did try the Schick and it felt like I was gouging my face!