Definatetly the BLACK one! Since it has a black background it gives more dimention to it. As Karen said it ties better with the dark sofa. As for the beige one I find it quite flat and uninteresting. Sorry if it's your favourite one!!!

Having said the above it also comes to mind how practical you could be with athe choice itself. With cats in the house, the black one would definately need more vacuuming then the beige one, but still I would go for it!!