Anakin vs Vader: Who is the Prime?

Vader all the way. He destroyed his Jedi side to become Vader. His force ability is highly superior to Anakin. He can lift Star Destroyers! He is also a very good duelist as you said. The only advantage Anakin has is that Vader has robotic parts to him and these are vital for him. But Vader is too strong for Anakin.

Vader since he had more time to train and study, and had a stronger mindset. Anakin had a higher potential though.

^Can concur.

I agree with all three of you