Pret A Manger Chicken Souk. Just gorgeous. I once went to three branches to find one that had it on the menu that day. Luckily I was in central London, so I didn't have to go very far to find one.
I make a lot of my own soup, carrot and coriander, minestrone, chicken etc, but I do like Campbells condensed soups as well, they're great for a quick meal, I use them as sauces, great with pasta especially the tomato and basil.