I, etc. would sooner do something

would sooner

Would rather. Often used to show one's disgust or displeasure with a potential event, outcome, or course of action. I would sooner join the nunnery than go on another date with John! His arrogance was positively repulsive! Susie just has no interest in softball this year. I think she would sooner spend her afternoons at the library than on the field.
See also: sooner

I, etc. would sooner do something (than something else)

I, etc. would prefer to do something (than do something else): She’d sooner share a house with other students than live at home with her parents.
See also: something, sooner