My wardrobe is mostly Joules, followed by Fat Face, Jack Wills and Zara.
I just love Joules. I think its the country feel and the animal prints. I'll see something and think "oooh, that's so nice!" It will turn out to be Joules so I'll end up buying it even if I don't need it. I've even kitted DD out with a full Joules nursery set.
Which brands fill your wardrobe and what can't you get enough of?