Heavy-lift alternatives to the Chinook

Is the Chinook the only aircraft in its category?

The Mi-26, CH-53K, CH-53E, and S-64, with the Osprey also considered because it can perform much of a helicopter's operating profile.

The assertion that the Chinook has no alternatives prompts several counterexamples. The Mi-26, CH-53K, CH-53E, and S-64 are named as other heavy-lift aircraft. The Mi-26 is described as remaining in substantial service and having greater lift than the Chinook on paper. The Osprey raises a separate classification question: whether it counts as a helicopter is disputed, but its ability to perform much of the same operating profile makes it relevant to the comparison.