I would look at boards like flow drifter, k2 turbo dream, rome agent rocker, arbor coda. I haven't ridden all of them but they should all fit the bill for what you are looking for and seem to get recommended a lot. I have ridden the cambered version of the drifter and the agent rocker. They are both stable but still fun, unlike something like a ride highlife that just wants to go fast all the time and is a freeride board.
Well the more I search it seems most guys have a park board and a pow board. Is that accurate?
I'd like an all mountain board but I don't want to cut myself short in either direction.
Nah most guys have one board.
Probably fair to assume that most active members on *this forum* have multiple boards, but then again you have to consider that the people who are here, active on a forum dedicated to snowboarding, are super dedicated to snowboarding, and ride more frequently and have more specific needs than the average Joe.
And if you polled them, I think you'd still find that most of them favor one board, even if they have several.
If you're riding 15+ days a season in various conditions, and legitimately split your time between park/freestyle/mountain/pow, then consider multiple boards. Otherwise, or if budget is a concern (and for a lot of people it is), you can definitely get by with a versatile all-mountain board, or a medium flex freestyle board, etc.