I shave with a straight razor, badger hair brush and shaving soap.
I also use mustache wax in order to get a really good handlebar.
At the moment, I'm using a disposable straight razor, because I need to get my regular straight razor professionally sharpened.
Anyhow, straight razor gives me the best shave, reduces razor bumps, and is a *lot* cheaper in the long run that safety razors. It also allows me precision for my facial hair and sideburns...which are sort of detailed.