Joy, I have waited a long time to reply. I have looked at the pics several times, usually after each person posted, to see if what they were saying could help me decide which pair I liked best on you. When I first looked at them before reading any replies, I could not choose between them, and at this point I still can't. They both look great.
I know you said you do not NEED two pairs of black jeans. Brace yourself. I am pretty sure if I was in this situation I would keep both pairs. My logic, if you had two pairs to alternate, would it not be twice as long before you need another pair? I don't think you would tire of either pair anytime soon as they are different looks because of the hems. And if sometime down the road they do feel outdated you could hem or change them at that time.
Several people on here say they buy duplicates of favorite items. Would this not be similar, ie, favorite items, slightly different. LOL
P.S. I don't generally settle for less unless it is somehow to my advantage. However I have no qualms settling for more as it generally is to my advantage.