SunRazer
Back From The Dead
I said the quote claimed that he was "nearly unparalleled", not unparalleled, which is not an exaggeration. In either case, it's clear that he's a master duelist.
No, he's no on Yoda or Mace's level, but the point is that he's incredibly skilled. And indeed, any practitioner of Juyo is automatically one of the most skilled of Force wielders (Knights of the Old Republic II: The Sith Lords) and a high-level master of at least two other forms (Insider #62: Fightsaber).
And Anakin's a level 9 per Nick Gillard, which puts him on the same level as Yoda and Sidious as swordsmen. Maul, Dooku, Obi-Wan and even Mace Windu are all 8's (Mace borders on 9, possibly Dooku also), and there's supposed to be a huge disparity between each level.
"When I started, I figured that a youngling is a level one. And somebody like Kit Fisto - seven. I did take it to eight and nine, but not many people know that. Eight and nine is cheat. So Obi-Wan is eight. Yoda is nine. Mace is eight, bordering on nine. Anakin is nine."-- https://youtu.be/Z2-iZNQrFBA?t=908
"Yes, but it's like a Richter scale - an earthquake - and so the difference between seven and eight and eight and nine is enormous."-- https://youtu.be/Z2-iZNQrFBA?t=946
"The level is not necessarily an indication of the performer's talent, but it takes a truly gifted and physically skilled actor to play a powerful Jedi combatant. 'Hayden Christensen is one of the best there is,' says Gillard. 'I've seen hundreds of sword fighters, people who do it for a living, and he leaves them all in his wake. His style has changed a bit since Episode II, when he was only a level seven. On this he's a level nine.' For the curious, Gillard does not reveal any Jedi who has achieved level ten. The highest is nine, occupied by a small number of capable sword masters, including Yoda and Darth Sidious. At so high a ranking, it comes down to individual fighting styles as well as the circumstances of the surroundings that make a difference."-- http://web.archive.org/web/20051202222123/http://starwars.com/episode-iii/bts/production/beacon126.html
In the Jedi levels of lightsaber fighting, Obi-Wan is an eight, while Anakin, Yoda and Darth Sidious are nines.-- http://www.theforce.net/episode3/jtf/palpatine.asp