Gucci Marmont or Dior

They’re both very different. One is very stiff and shiny whilst the other is soft velvet. I do like both these bags, I think you need both in your collection lol. I have the exact Gucci Velvet Bag in this Ruby colour and I absolutely adore it, just perfect.
 
I've always liked the Marmont in this colour. Both bags you've picked serve very different moods though. One feels slightly more polished while the other's a bit more fun. It would depend on your personal style. As much as I love Dior and the Diorama, I would go for the Marmont.