The dark beige is absolutely GORGEOUS (heck, Chanel did no wrong this season - the green, red, beige, copper, etc. are all beautiful) but I think you need the red jumbo to add a pop of color in your collection.
Or how about both If only! My vote goes for the red.
Um, that's kind of difficult as I have both red Jumbo(10C caviar) and Taupe Maxi(10C caviar)....but given that both are double flap, I would pick the red jumbo because double flap Maxi is quite weighty.
IMO, a gal needs both at least one beige/taupe and one red in her collection! LOL