I guess I don' t really understand what the dilemma is, hunt both. 10 acres isn' t enought to hunt unpressured the whole season, you' ll burn it our very quickly, so you' re going to need more spots anyway. That' s assuming you hunt regularly.
If the property is good, and it sounds like it, river bottom with thickets is hard to beat, especially if there' s some crop fields nearby, you' ll have a nice spot, but I' d want to have a bunch of other places to hunt during the course of the year as well. What if there' s a poaching problem, or tresspassing, or dogs, etc, you' re going to need a backup. I have 4 state properties I hunt, as well as a half a dozen farms, and I hunt them all during the course of the season. Hunting ground is like money, you can never have too much. Good luck