I am OBSESSED with white bags right now. Gryson is making my faves mainly b/c the leather is so thick and durable. My second choice would be an eggshell Bottega that I saw on the Neimans website. I would be afraid to get it though b/c the leather is so soft and I would be afraid of damaging it. Here are my two Gryson picks. Plus if you use the code Rare15 you get 15% off at Rarechic.
My fave is Express bag that kinda looks like Chloe Paddy. It's made to look like leather but it's not. Totally easy to clean. I wouldn't buy an expensive white bag or it would be black by the end of the summer. Not good.
I don't own any white bags (I'd be too paranoid carrying it!) - but I think the Gryson Skye or Olivia is gorgeous in white (and on sale right now at AE!!)
I, too, think the white Muse is gorgeous! I wanted to buy a patent white one last year, but they were sold out by the time I was ready to buy it. Then, this year I haven't seen any white ones available for sale.
I did just order the white patent YSL Tribute bag and it should be here tomorrow. I'm expecting it to be my new favorite white bag!