what is the succession of most durable to least. I would think epi is the most durable but i've seen it get knicked and stuff. I'm looking for a keyholder that won't look super bad after several months of hardcore use. I really want white MC or amarante vernis (altho i already have a little something in amarante) If anyone has comments specifically for those two items please give me your suggestions on which is the best! I'm thinking....it goes... epi (leather) mono black MC damier azur (b/c of color and potential penmarks) white MC (same as above) vernis (b/c the patent?) thanks!