As others have mentioned: It all depends on your hunting environment/shooting situation. For MY hunting scenarios, 80% of the time I want/need FOV. It's one thing to try and hunt with a high mag optic during the day when you still have situational awareness by using your other eye or lifting your head off the scope, but at night you're going to be severely limited and generally relying on what you see through the thermal scope.
Also, I find that I can generally get closer to animals at night for various reasons. So you need to really ask yourself if your HAVE to take long range shots or if you can just stalk and get closer (Or in the case of predator calling, continue to call and work the animal to get closer.)