I enjoy my badgers but none of them can go toe to toe with a modern synthetic's efficiency. Faster and better lather using less soap.
These two posts summarize well my opinion. My only synthetic is a Muhle STF that probably makes better lather than any of my Simpson Chubbies using 1/4 of the product. If the end justifies the means, then I think there’s no discussion and synthetics are the best. But then there are the intangibles… there’s nothing like a cloud of Badger massaging your face, or the scrub of a wet boar brushsynthetics are functional but lack any soul or personality.
same goes for razors, soaps, and everything else. Why pay top dollar for them while a cheap Tech / Arko will get you to the same place? Subjectivity and intangibles, my friends