I like both if I can find it. A pond adjacent to a field (or better yet, in the middle of a field) is the icing on the cake for us up in MN. The geese will use the field for feeding and use the pond for loafing in the afternoon.
If the geese are using a specific body of water as a roost, I keep my distance from the water and stick to the nearby fields. A great shoot for one day will cost you a lot of good shoots for the remainder of the season.