The Light Sword is a solid Weapon if you can wield it, but it's a bit pricey. It's the best Weapon you'll find in a chest, though, so you might be able to get one on the cheap. +14 damage isn't bad, but the 39 Agility requirement is pretty steep early on.
The Light Sword is powerful, but is the only Weapon among the five you can't buy that has neither a range nor an extra ability. It's a solid Weapon, but you can find better.
The Light Sword is powerful, but is the only Weapon that becomes available for sale at Level 7 that has neither a ranged attack nor an extra ability. It's a solid Weapon, but you can find better.