I have both and for me it depends on lifestyle. I love my B's very much, but there are times I want a workhorse bag that I am not as concerned about. Both are under the radar imo but GP is even more so. If you are not as concerned about finances, then I would say definitely Birkin. If you are more concerned about spending that much on a bag and a lot of people are, then the Garden Party is still a beautiful well made bag.