Sanji only lost 2 clashes against Jabra, and the same as Zoro, and those are not even "clashes" cause Sanji only blocked, with nameless kicks.
https://s2.mangabeast01.com/manga/One-Piece/0414-011.png
https://s2.mangabeast01.com/manga/One-Piece/0415-013.png
The same with Zoro.
Here blocking with his swords simply, like I proved with Sanji. He didn't use a technique and only used his basic strength, like Sanji in his fight where he "lost his clashes".
https://s2.mangabeast01.com/manga/One-Piece/0416-014.png
https://s2.mangabeast01.com/manga/One-Piece/0416-015.png
Or here:
https://s2.mangabeast01.com/manga/One-Piece/0413-010.png
https://s2.mangabeast01.com/manga/One-Piece/0413-011.png
Or here:
https://s2.mangabeast01.com/manga/One-Piece/0416-008.png
Or here:
https://s2.mangabeast01.com/manga/One-Piece/0417-005.png
And like I said earlier, we can count as "clashes" when Jabra is using Tekkai. Because after all a shield can be used as a weapon to increase the power and the rival needs to surpass that extra power if he want to win in a contest of strength for example and Jabra uses this technique when he attacks to increase his power attack precisely.
So here we've got Sanji winning clashes:
https://s2.mangabeast01.com/manga/One-Piece/0414-014.png
https://s2.mangabeast01.com/manga/One-Piece/0414-015.png
https://s2.mangabeast01.com/manga/One-Piece/0414-016.png
https://s2.mangabeast01.com/manga/One-Piece/0414-017.png
https://s2.mangabeast01.com/manga/One-Piece/0414-018.png
https://s2.mangabeast01.com/manga/One-Piece/0414-019.png
https://s2.mangabeast01.com/manga/One-Piece/0415-006.png
Ohhhhhh, wait wait, counting now it seems we've got something interesting here.
Zoro: 4 "clashes", 3 loses and 1 tie.
Sanji: 2 "clashes", 2 loses.
Clashes won by Zoro with a techique: 2 --> Ichi Ni Gorila, Tatsumaki and Tatsumaki didn't even make some damage to Kaku, he has enough time and strength to resist ir and run, unlike Jabra when he got kicked by Sanji, he received the damage quickly and didn't have the time to jump back and reduce the damage (like Lucci against Luffy for example).
Clashes tied by Zoro with a technique: 1 --> with Iai Son son
Clashes won by Sanji with a techique: like 7.
Ohhhhhh suprise. Pikachu surprised face!!
You are talking pure crap bro!!!
Sanji = Zoro and Sanji isn't weaker than him in attack power. Reread and pay attention at the manga and stop making a fool of yourself!
And ofc Dourikis are viable. Here wasn't proved anything about its infeasibility. Lucci didn't hit Fukuro with a force with 4000 dourikis or Jabra or Kaku with their respective douriki power. Fukuro would be put to sleep or to death if that would happened. They don't need to exert full force, that's the point of this system. He can meassure people above him in that way despite being much weaker.
That's totally illogical and that's why is 100% valid, because author didn't give a crap about this system being logical. It's only an invented system to say the power lvls of his characters. There is no point in finding its flaws.
This is only a desperate attempt by Zoro fanboys (most of users against it), because they can't accept the obvious thing about him being equal to a cook who doesn't train or doesn't have the ambition to be the strongest in something.