Comparisons

Side by side, including the pairs people confuse — with a recommendation rather than a table and a shrug.

Authored, not generated

The comparison toolgenerates field-by-field tables from the catalogue automatically, and that answers "how do these differ on the axes we store". These pages answer "which should I use, and why do people confuse these two in the first place" — which no amount of field diffing produces. Every one ends with a recommendation.