What's the most reliable type of fire starter for wet conditions?

Across the reviewers we read, ferrocerium rods draw the most consistent praise for wet, windy, or high-altitude use because they throw sparks at thousands of degrees regardless of moisture. Specialist bushcraft communities note ferro rods can't run out of fuel and are immune to dampness, though bare rods can corrode if stored wet. For lighting charcoal or damp logs quickly, waterproof wax-and-wood cubes are the more convenient pick.