Not much choice there, single strand to hook, swivel, or lure is a haywire twist, sevenstrand to hook, swivel, or lure is a figure-8 for light wire (40 or less). I crimp the tag end of sevenstrand just to clean it up, but the knot will hold. With heavier sevenstrand I put the hook or lure inside a half granny and then put a sure crimp.
The difference on sevenstrand is because my hand crimpers just don't do a good job on the little #1 or #2 sleeves for light wire.