I crop for effect without regard to the ultimate WxH ratio. I almost always crop vertical orientation shots, usually to 4w x 5h. Maybe I am lucky. I have been shooting professionally for 12 years. I shoot for a number of high end realtors (several 4+ million listings in the last year) and have never had an agent mention image aspect ratio to me (there was one exception, a new agent and they said that vertical shots didn’t fit into the brochure template they had created themselves – shortly thereafter, they modified the template to allow vertical images).