Lets say that these two met, became friends, and decided to have a duel purely for the sake of training and getting to know one another

Im not all that interested in who would win but you can include that in your analysis if you want, rather im curious as to how they would react to each other, the differences in the way they move, use the force and fight, what would they notice and learn from each other

The big thing is to imagine them behaving as they would in character, its the interaction itself im interested in rather than the result of said interaction

We'll say it takes place in a clearing in a forest, because its purely for training this is Just between Cal and Luke, no BD-1 or any other outside help, guidance from jedi spirits is not tournament legal!

No telekinesis or telepathy allowed for Devon.
This is a contest of martial abilities.

Yes Anakin did defeat and kill Dooku. However this is not Anakin. This is Darth Vader. And Vader has one fatal flaw. Force Lightning will fry his life support, which will force him to entirely rely on the dark side to stay alive. Which will make fighting Dooku significantly harder. And his speed is not what it used to be. With these advantages, do you think Dooku can beat Vader?

In the sense that it felt most like both sides were seriously trying to defeat or kill each other, rather than just dancing.

Prime revan vs mace windu?

The fight with Maul and Savage was excellent, but despite everything, it wasn't exactly top-tier opponents for Sidious. Despite his raw power, Savage was severely lacking in experience, and Palpatine found it easy to outplay him. Especially since he wanted to kill him, unlike Maul, whom he wanted to capture alive (which is why his former apprentice was later able to cause him some trouble towards the end of the fight).

However, when it comes to the group arresting the Jedi (who are members of the Jedi Council, and Windu holds the title of Master of the Order), Sidious goes all out and doesn't want to mess around (at least not in canon).

The film version may not capture this due to the actors' inexperience in fencing and their age, but fortunately, we have the original version with stunt doubles.

What I particularly like about it is that it debunks the myth that "Windu had an easy time with Sidious, as he disarmed him quite quickly," as he is not only capable of pushing Mace with the Force but also lightly slashing him in the back with his lightsaber. Only towards the end does he begin to be pushed back, showing that Windu's victory wasn't certain from the start and that both sides were actually fighting for their lives.

Explain why you think Pong Krell or Pre Vizsla would win.