Used to use the Mach3, works awesome first shave, but wtf, they get dull quick. Even tried keeping the blade soaked in alcohol, didn't last much longer. Still the best shave, though.
Currently using disposable gillete's. Buy 'em in a bag of 40 at Costco, use once, pitch. Seems to be the best option cost wise.
Electric razos suck bad, unless your beard is like peach fuzz. I tried the top of the line Norelco, with a money back-90 day trial deal. I got my money back.