I thought I would try and satisfy curiosity here, and I apologise if it's been done before.
Personally I started off with a Gillette twin blade that was a high school graduation gift from the Gillette company. I don't know if that is still a marketing ploy by that company, but it's effective. I stuck with that plastic handle for years, only needing to buy new cartridges on a regular basis. I never went for those crappy plastic disposable razors, guess yellow just isn't my colour.
Bought a mach 3, because three blades were supposed to be better, never noticed the difference my self. Mostly stuck with the twin blade (yes I still have it today too, sentimental fool I am). Bought an electric razor, just because I'm a James Bond fan and it was the electric razor that J.B chose to use and it was Duty Free. Totally dis-satisfyied with that. Went back to the twin blade. Short answer Gillette twin blade cartridge.
Now I have corrected my errant ways and have gone straight.


Mick