For me, with a hand/arm-carried bag that I want to use it frequently, I have come to realize that I need to think about more than the look and the feel of the leather -- although look and feel are great when I'm staring at a bag, that doesn't do me much good in the utility department. Durability is one factor, but I assume since you are looking at epsom and clemence, you are already choosing to go for a sturdy leather that can be used for everyday. The main factor for me, then, would be weight. My b30 is an ostrich, and when I compared it against a clemence b, I was SHOCKED at the weight difference. Even empty, it felt hefty to me. I don't think I'd want to carry something that heavy (especially once loaded up with my daily essentials) on a regular basis. Others may be more tolerant of heavier bags, but I have found over time that I just stop using any bag that I find heavy -- it's too much hassle. I think that's just something you need to figure out for yourself. Also, epsom has grown on me over time. I used to strongly dislike how artificial and thin it felt, but it takes colors soooo beautifully and is wonderfully lightweight. In addition, with a B30, I don't think you'd have as much concern about wear at the corners that some epsom owners have warned about.