J. Kenji López-Alt goes characteristically deep on the BLT sandwich:
It wasn’t until I tasted my first great tomato, at the vine-ripe old age of 22, that I finally understood the true nature of the BLT (and, by extension, why I’d never enjoyed tomatoes on my sandwiches or in my salads). Here we go: A BLT is not a well-dressed bacon sandwich. A BLT is a tomato sandwich, seasoned with bacon. From this basic premise, all else follows. Indeed, a better name for the BLT might well be the Tomato Club, for it is the perfect tomato, not the bacon, that is the rarest, the most ephemeral, the most singularly delicious ingredient.