Choose a Mustad single hook by how the bait will be attached. The 92247 Baitholder has extra shank barbs to retain baits such as worms or ragworm. The Superior Aberdeen 3263-BU has a long shank and round bend. For a cheburashka rig, the Chebu-Chebu combines a large eye with bait holders: check that the connection moves freely through the eye.
Compare shape as well as size number
A long Aberdeen and compact Chinu Light can differ despite sharing a size number. Compare gape, shank length and wire thickness against your bait. Chinu Light uses fine wire; stronger fish and heavier rigs also call for attention to wire strength. Leave enough space in the bend after baiting. TitanX and Black Nickel describe finishes, not hook sizes.
See also: Mustad Hooks & Treble Hooks, Mustad.
Compare the full range: Single Hooks.