Weather sniping from afar, throwing a record breaking javelin, or leading the charge with mounted missiles, ranged weapons will always lead your offense and help you out in a defensive pinch.
Crossbows: Accurate and deadly, crossbows are the best weapon to fend offwould-be besiegers.
Bows: Fast and strong, the bow and arrow is the defacto ranged weapon in Warband. Bows can be used to fatal effect from an archer-line's volley fire to a mounted expert's calculated kill shot.
Throwing Weapons: Exceptionally useful, throwing weapons are capable of dealing immense amounts of damage if thrown from a bolting steed and equally so into incoming cavalry. Throwing axes and spears also double as melee weapons to help you out in a bind.