As far as I know, Canon still shows Vader as the greater duelist. By rots, Anakin was just a small step below Yoda in force power, and we now know Vader grew far more powerful than he ever was in rots. Vader has waaay more TK feats, and the scale of those feats are equal to and beyond anything that Yoda has shown up to this point.
I get that Palpatine has likely grown in power since the PT, but I doubt OT Palps vs ROTS Yoda would be as completely one sided as ESB Palps vs Vader was.
Oh and given this is ROTJ Vader whose conflict was at its peak, this will also probably be pretty one sided in Yodas favour.
I think it is possible that prime Vader might be able to best Yoda. We just need some definitive clarification regarding how gimped Vader may(or may not) have been during RotJ.
Registered: Dec 2018
Location: The Scarlet Mansion
I personally tends to Vader due to his massive feats that produced by his substantial appearances.
Though Its possible Yoda could beat Vader. We need to wait to see more definitive feats/clarifications in the future
__________________ "Happiness is a lie. Life is horror. The light is always dying all across the universe. The last star will flicker out someday, when it does, all that remains is shadow. And I will be its king!"'-Amahl Farouk
Registered: Dec 2019
Location: Imperial Throne Room
Vader was weakened by his confliction, even Palpatine states this. Anakin with a small amount of anger was stomping Dooku far better than Yoda was and Vader is stated to be in his prime by Rebels.
I am not up to date on comics, but Vaders force feats almost never translate to him dominating opponents in combat. He still struggles with people that Yoda would eviscerate.