I recently printed up 2 different types of cards: On the left, very minimalist uncoated cards with rounded edges; on the right, double-sided Moo.com mini cards.
I think I generally prefer the Moo cards, though they aren’t quite as practical, as they are half-height and slightly harder to write on. (Also, I made these the day before Moo started allowing custom logos on the text side, so as much as I like the skull, I’d rather use my Ag logo)