I hunt field edges when possible, the issue is depending on the amount of pressure the bigger bucks will not show until the last few moments of daylight - for pure deer sightings you cannot beat a field edge for larger bucks your best bet is to observe the field see where he is coming from, and then go back off from that trail probably75-100 yards and hunt him, typically they have staging areas..... locate one of these and your money

During the rut - everything changes and field edges can and have produced decent bucks for me