i love that bag! i own 5 mk bags and love them all! if you own a lot of black bags you may want to go for the vanilla, however, if you go for the vanilla you can use his "rain and stain" product that will keep it vanilla (and not turn it to chocolate!)...the magenta is absolutely gorgeous...great, i've been NO help whatsoever!!!!
I'm a big MK fan, but I don't like MK's magenta. So that one would be the first one out for me. You can't go wrong with black, but the Vanilla is sooo nice... Truly, go for the one that "speaks" to you. Protect the leather, regardless of the color.
what color did you choose? I saw this bag yesterday and fell IN LOVE with the magenta!!! I never buy colors that arent neutral but I really want to go back and buy this one!!!!!