I'm going thru the same issue:)

I'd get red ! When I see ppl with blk Chanel's I think Ii nice but everyone has it and when I see red or a different color I think OmG ! So niceeeee hahaha depends both r nice though but I think red is more special u can have the bag that everyone wants !!! Yup black is so easy to come across likely u wil buy another down the road .. I bought my first Chanel in grey but already I'm thinking of another one .. Haha

If this is ur only Chanel (though I doubt I will be your last =p), then pick Black. However, red chanels are not easy to come by.

The 12A red is gorgeous! I vote for red as you can always get the black at a later time.