Anyhow the A Vs B, the synthetic covered foam padded nylon base saddles, have their place,
and that is when left out and caught in a shower, there is no damage done.

My 2 bikes that get the most use, of late, have Fi'zi:k Vitesse saddles on them..

though, a late adopter , when I saw one of the earlier versions, with a Leather cover
I was covetous..