To add to my favorites: it's really gotta be my Le Creuset dutch oven, now that Bleeker has hooked me on using it to bake bread. I never buy any sort of bread anymore. I've had my Le Creuset for nearly 20 years, and I always meant to build upon my collection other pots, but I haven't yet. I only have two other cooking pots--an old cheapola saucepan and a small cast iron skillet.

Oh and one more thing that I really like for cooking fish is my Romertopf for fish. I would like one for chicken someday, too.