I love standing corn(if I can hunt it)because the deer do to. The deer will stay in the corn pretty much full time here in Northern Wisconsin because it provides cover and feed at the same time. If they have a cedar swamp nearby all the better. I have stalked many deer in corn fields. The best time is after a fresh snow of about 2-3 inches. The deer are easy to track and see. I will walk across the corn field looking up and down each row until I see a deer, then I'll raise the binocs to get a good look. If it's not something I want to shoot I let it lay there. I would definitely leave it standing but if you plant corn on the same land every year you will soon find out that you can't raise very good corn there for long.