Yes, I wasn't exactly saying the most efficient would be the best, it's probably a place for me to start.For me, the most efficient doesn't mean the best. The most efficient Gillette razor for me is New Improved or New Deluxe. though they are not the best Gillette for me.
Which the one do you prefer, best for you?
We kind of all have different preferences and this and that, that's what makes it sort of fun, for me.