I have used every evolution of the Gillette blades since Sensor.
Sensor
Sensor XL
Mach3
Mach3 Turbo
and a few in between. I also used the original Schick Tracer (crap) and two different electrics.
Mach3 Turbo is easily the best. My facial hair grows fast and is very dense - I have to shave twice each morning, so I take this seariously.