I have both (in different colors), and if this is your intention, the
prada all the way.
I have a light-colored saffiano tote that is my favorite summer bag. it's so light and easy, in the summer carrying heavy bags seems harder.
also, with the saffiano bag I have zero problems with color transfer. it's such a durable and beat around type leather. the celine luggages are a very soft, fine leather, so in a light color it's going to be susceptible to both color transfer and simply getting dirty easily.