Hugo_YGotta say, I find i love the patina on my Brass one. The copper looks more like an old penny to me. Even after about a year, my brass still has a mild shine to it, but it's definitely leaning toward a matte surface texture. Mine's not quite developed patina as strong as the example in the photo yet. Honestly, it's very nice. I'm sold on brass, myself.
Ultimately though, you'll need to make your own choice.
Ultimately though, you'll need to make your own choice.