The first Jedi dullest comes to mind is Yoda. Yoda is presented as one of the most legendary Jedi Masters in history. I was amazed watching him duel both Count Dooku and Darth Sidious; two great lightsaber masters in their own right. Palpatine dueling the four Jedi Masters was awesome in ROTS. I loved reading how he was so skilled and fast that it was like dueling a phantom. Obi-Wan Kenobi was a brilliant dullest who always knew how to use his head. He would go on defense and attack when he saw an opening. There are numerous of great characters to choose from. These three characters are my personal favorite when it comes to using a lightsaber.