In the woods for me also. In our area if the bucks ever enter a field, its in the dark! In 25 years of hunting I can count on one hand the big bucks I' ve seen in a field. Most of those have been pressure or jumped and ran into a field. I do think there is terrain and differant states where hunting the field edges may be the ticket, but my area of central MN rolling oaks and birtch/poppal slews its time to be in the woods!

Good Luck!