When I lived in the South and still when I return to hunt, often, I used 3x-9x scopes but in wide angle versions. While I usually set the power to either 3x or 4x, there were many times I would set it to 6x when stand hunting fields, short brush areas, cut overs, power lines or larger timber that were more open. However for most, it is easier to locate deer with a lower power at shorter ranges, and hitting deer at moderate ranges with a 3x-4x is no real issue.
If you are proficient at using scopes in fast pointing and snap shooting or plan to only hunt more open areas, you can make the 6x work, but there could always be those times an unexpected animal gets in close or jumps when you are walking.