Hi,
Great topic.
If I were to be limited to only one species it would have to be for Coues deer(serious hunts). Secretive, small, cunning and agile. The inhabit varied terrain and they usually aren't foun in large herds. Spot and stalk and hours of glassing and long sneaks just to get a shot.They are tasty as well.
Now if we are talking just one animal for a fun hunt and good eating it would be for the clown prince of the south west. The javelina or collard peccary. I hunted javelina as my first big game hunt when I was 12 and have been hooked completely LOL. The meat when cared for right makes great BBQ and sausage. Fun to watch and to get in close on and fun to chase.LOL.
Coues