Favourite missiles: practical choices and failed designs

What are the panel's favourite missiles, and why?

Penguin, Naval Strike Missile, Brimstone and Talos are favored for different reasons; another choice is a failed system whose design is interesting despite its problems.

Penguin is admired as a capable missile for its period. Naval Strike Missile is the practical off-the-shelf choice because of its modularity and adaptability, while several other promising systems are described as still awaiting service. Another participant selects Brimstone. Talos appeals for the breadth of targets it could engage and for the existence of a nuclear-tipped version. A failed missile example prompts a different lesson: a weapon can combine attractive paper specifications and ideas such as caseless ammunition yet repeatedly fail in practice. The discussion says that replacing the missile with a large HEAT round brought further reliability problems.