Yesterday, I was reminded of a comparison that is made between the two sports and that is light wind sailing/kiting. I was out on an 11.0 and my F160 in 3-14 knot winds (in the summer, we are desperate for wind). Formula was fine, but some slogging.
NO kiters were out, since the wind blows 10-14 knots for 8 minutes and then settles to 3-6 knots for 8 minutes, etc. They don't like to swim with their rigs when the holes set in, which can last for much longer than 8 minutes at times.
I have read that kites are better in light winds, but even in steady winds, they have no advantage over a formula boards in equal 8 knot winds, and if the wind dies, they are toast, while formula slogs or pumps to shore.
Formula 160; iSonic 111; HiFly Move 105; Tiga 263; '85 Mistral Superlight.
Maui Sails TR 11.0; 9.2; 8.4; 7.6; 6.6; Maui Sails Switch 6.0; 5.2; Maui Sails Global 4.5; 4.0.