Graffiti has the unfortunate problem of the printing rubbing/scraping off. I suppose over time the Cerises might have the same problem, but being a newer line perhaps they have perfected the printing now.
personally, the graffitti is too busy for me. Also it reminds me of all the XOXO and Guess bags that copied back in 2001. I do like the cerises (obviously), but for space purposes and nostalga, I vote for the Graffitti.