Depends on what your hunting, where your hunting and how your hunting, and what your hunting with.

I personal have one bow i use for everything, I use it to hunt everything from whitetails to elk. I hunt a large variety of places, from tight woods in the east to huge open draws in the west. I have a 5 pin sight and i have taken shots out to 60yards + before. Each pin serves a purpose. It depends on you. if your only huntin whitetails from stands and you sit only in woods and never on largefields then a 1 pin or 3 pin would be great. But if you u hunt big country on your feet then you might want 3 pin or more. I know alot of guys like the adjustable 1 pin, but when i hunt out west the last thing i want to do is adjust i just want to draw, place my pin, and luce!