There is no answer for this. Leather quality comes from the leather and the workmanship and the materials other than leather. 0 people know these metrics for the "designer brands" to make a ranking list. If you want a Fendi wallet? Go get the damn thing. It will be BIFL, don't worry as 95% of luxury goods are rebadged/designed from paragon OEM sources. Will it last as long as a BIFL wallet from a non-designer? It will likely be close but there's an aesthetic difference between normal and designer and some want this. Beware haters that get big mad about $1000 wallets....while not my cup of tea....they are legit, but some get SuperMAD about them.