Veitch is also one of the authors of TOTJ, so his opinion counts for a lot and considering he worked with Lucas, what he says varries weight.
What abilities do the Ancint Sith show in one on one fights? In straight mano a mano duels, not a single Ancient uses a force ability beyond throwing a rock.
And no, Veitch put Yoda above the Ancients. It means Yoda is stronger and better than Kun, Yoda is on top. He put Yoda bvoe Kun AND the ancients.
The Ancients are simple not as great as you think they are and every single person we've consulted with authority on the matter seems to agree. If you can arguen with them an LFL, when one of them has said it's apparently what LUCAS HIMSELF intended when he worked on tOTJ with them...When every bit of material shwpos Yoda as a monster in combat and with the Force...The Ancient Sith showed us some sword movies, that's it.
Seriously, I'm starting to get a bit annoyed. This is it, Yoda>The Ancients. Just accept they're not as great as you think they are because 'That Text' is canonically, licensed, review and approved material. And now we have one of the authors clarifying.
Power and skill mean a lot in a one on one duel. This is done. Wait for Nai, now