While the Speedplay may be the most expensive here, it does at least offer some genuine differences for your cash.
As well as the obvious benefits of being double-sided, and the small scale increase in clearance when cornering, it’s the adjustability and personalisation that wins plaudits.
The release angle and amount of freely rotating float are independently customisable.
This does mean cleat set-up is a slightly more time-consuming affair, but is required less often, as the contact surfaces are metallic.
For those prone to niggly knees, the Speedplay is well worth considering, and for everyone else, you do get some extra bang for your buck.