I'd as soon do
I'd (just) as soon (as) do something
I would prefer to do something. Tom: Why don't you give Joe a call? Jane: I'd as soon as you did it. I'd just as soon we didn't stay here long.
See also: soon
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.