If you're proud of a flaw, it's not really a flaw. It just depends how you define flaw I suppose. Is a flaw something you personally don't like about yourself, or is a flaw a physical characteristic that is outside the conventionally standards of attractiveness? Either way, it's good to feel good about yourself, even the bits you don't like, you should feel good about. You only get one you, no point wasting your time hating yourself. I'd say my favourite 'flaw', a physical characteristic that I don't always like, would be my butt. Haha. It's very out of proportion to the rest of my body, but it gives me a great silhouette. :P