I was surprised when I learned that the lightsabers in ANH were recomped from their original elements; it's amazing how they can look so different. The sabers in the '04/'11 ANHSE just do not feel right to me.
The only time in the prequels when a lightsaber felt the same way was when Yoda lopped off the clonetroopers' heads during Order 66. The blade is less defined or something.