7 Would Lose To: Crocodile's Sand Physiology Renders Him Immune To Lucci's Attacks.
CP9 have no chance against Enel. CP9 vs. Crocodile is a bit of a better match up, since Lucci was confirmed to have haki pre-ts and Kalifa has her ability which can prove useful against Croc.
Enel could effectively shatter Crocodile after a concentrated lightning strike. Neither Enel nor Crocodile have used Armament Haki, but with such a stark contrast in strengths, Enel wouldn't need it to defeat the would-be tyrant.
In the span of a few months, Luffy has already taken down the likes of Doflamingo, Katakuri, and Kaido. These main villains are widely considered to be far stronger than Lucci. Even if Lucci were comparable in strength, Luffy would still outlast him in terms of pure stamina and endurance.
This proved to be a bad habit, which ultimately led to his defeat. In his first and second fights with Luffy, instead of killing him straight away, Crocodile left Luffy to suffer. Because of this carelessness, Luffy was able to come back in two different occasions and finally defeat him.
1) Crocodile
However, he is currently at a disadvantage against Zoro. For some reason, Crocodile has yet to demonstrate any usage of Haki techniques. This is a basic necessity among the strongest One Piece characters. To further prove this point, Zoro can use Haki to bypass the Logia effect of Crocodile's fruit.
3) Nico Robin
Unfortunately, no matter what clutch technique she uses, Robin is never going to grab hold of him. Crocodile can shift into sand without even thinking. Robin seemingly doesn't use Haki, so that's another major problem. She is also too slow to realistically catch up with Crocodile.
Even though he entered his Gear 5th state, Luffy is much stronger than Lucci, even in his awakened form. This was evident from the fact that Luffy was able to dodge every single one of his attacks effortlessly and hit him with a powerful strike right into his gut, sending him out of commission for a while.
However, Luffy was confident that in Enies Lobby, things would be different. With the help of his two new Gears, Luffy was able to defeat Lucci and free Robin.
Since being defeated by Luffy, Rob Lucci joined the CP-0 and improved his fighting skills. For the time being, Lucci holds the edge over Koby, but it might not last for long.
Like other eaters of the Devil Fruit, he cannot swim and loses his powers when immersed in water or touched by seastone, but another unique weakness is that he loses his ability to turn into sand when he is soaked in water or is touched by something soaked in water.
Katakuri will beat him easily because crocodile lose against Pretimeskip Luffy. Crocodile destroyed Luffy twice and Luffy would've died without help specifically robins. Also, Sir Crocodile went toe to toe with doffy mihawk saved Luffy from akainu and did all this without really taking any damage pre ts.
rex. Paleobiologist Gregory M. Erickson and colleagues put all 23 living crocodilian species through an unprecedented bite test. The "winners"—saltwater crocodiles—slammed their jaws shut with 3,700 pounds per square inch (psi), or 16,460 newtons, of bite force.
1 Can Defeat: Sir Crocodile
While he is a powerful Devil Fruit user, it's not really something that a lot of the world's elite can't put up with. Plus, as far as fans have seen, he doesn't seem to have Haki abilities, meaning that Boa has several key advantages going into this fight.
At the same time, Lucci is also an incredible user of Haki and, when combined with his Devil Fruit powers, grows even more difficult to fight. At the same time, his already incredible Rokushiki arts have now been perfected.
In his newfound Awakened form, Lucci's physical strength and Armament Haki were powerful enough to clash on par with Gear 5 Luffy's own strength and Armament Haki. Given the immense power Gear 5 grants to Luffy, this is an outstanding feat for Lucci.
By Marine standards, it can be inferred that Lucci is at least at the level of a Vice Admiral, as few of them are capable of using more than a few Rokushiki techniques while Lucci has mastered all of them. The only definite exception to this rule is Luffy's grandfather Monkey D.
considering they stand at the apex of the Marines. One does not simply earn the title "Greatest Military Power" by having power that is easily obtainable. That said, CP0 average members probably rank in just under admiral strength.
3) Rob Lucci
The former CP9 agent is strong enough to become a member of CP0, the strongest organization within the Cipher Pol. Lucci is a skilled practitioner of every single Rokushiki technique. With that said, Lucci doesn't have elemental powers like Sabo does. This already puts him at a major disadvantage.
Despite being enemies, Lucci seemed to respect Luffy's strength and determination, saying that it would have been boring for him to have died in the Buster Call bombardment, and also added that Luffy is a worthy captain for having absolute faith in his crew and their ability to survive.
1) Enies Lobby Rob Lucci
The speed and impact of Sanji's attacks is undoubtedly on a level at least equal to Gear Second Luffy at the time of Enies Lobby. Sanji's use of Haki would also make him have yet another edge on the Enies Lobby version of Rob Lucci, who is unable to use Haki.
All other Mugiwara can destroy Lucci pre-timeskip, Brook is ridiculously strong and durable, the same for Franky with his lasers, Nami and Robin have OP abilities, Chop...
10 Could Beat: Ace Doesn't Have The Durability To Survive Doflamingo's Attacks. Ace's greatest asset is his unstoppable offensive prowess. His Devil Fruit could engulf an entire island in flames and even rival Blackbeard.
A fully grown crocodile would win a fight against a jaguar every time. The reason is simple: jaguars couldn't muster enough power to land a fatal attack on a grown crocodile without putting themselves at tremendous risk. Jaguars prefer to hunt their prey and land a quick, fatal attack on the throat.
He literally lost the ability to use haki because he lost the ambition that Haki IS. It's not Ki, it's not Chakra, it's not some autonomous spiritual force, it's literally the concept of ambition and will made physical, which means you need to have a dream in your heart for it to work at all.