The only time a bow needs to be absolutely quiet is when you draw back.
Look for maximum let off so you can hold the draw for the longest possible time.
The bow with the longest limbs you can tolerate will be the most accurate and forgiving.
A bow that is light weight will help steady your aim.
A bow that is known for quality will help you keep it for a decade or longer. (I personally like Hoyt)
Good luck!