Better way of not hurting yourself
the energy sword is made for disarming and protection and the light saber isn't its the exact opposite making the light saber obsolete
For one it offers a much more varied fighting style due to not surrounding your hand. As a side note, someone voted yes and essentially said the energy sword is safer. Come on, your hand is literally surrounded by the energy of that sword! How is that safer?!
sorry big halo fan but i would have to go with the lightsaber.