Lucci's current strength is unknown, however, he's easily stronger than a Navy Vice-Admiral. In the later arcs, fans will get a better understanding of how strong he is.
Lucci is also almost certainly weaker than any of the current or former Marine Admirals, who all possess power comparable to some of the Yonko's strongest subordinates, let alone the current and former Fleet Admirals, Sakazuki and Sengoku.
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.
7/10 WHO'S WHO: He Has A Higher Recovery Rate Than Lucci
It is believed that Zoan-type Devil Fruit users are the strongest when it comes to close-quarters combat. Since Who's Who has an Ancient Zoan-type Devil Fruit, naturally, his recovery in combat is much higher.
2/10 CAN'T BEAT: Rob Lucci
Lucci is also trained in Rokushiki. 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.
Lucci possesses the ability to use Kenbunshoku Haki.
7/10 Would Lose To: Crocodile's Sand Physiology Renders Him Immune To Lucci's Attacks. As powerful as Lucci might be, every single one of his attacks relies on physical force (including the tempest kick, which concentrates his power into a shockwave).
With that said, Lucci will have to resort to his leopard hybrid form in this fight. Sabo would ultimately win simply because of the Mera Mera no Mi. This powerful Logia Devil Fruit could spread fire across the entire area.
5/10 Can Defeat: Rob Lucci
However, as someone who's depended purely on muscle to do the job, he doesn't have many strategic advantages to take out Eneru from the his strong variety of vantage points. As such, Rob Lucci probably wouldn't stand a chance against Eneru just sending out lightning bolts from miles away.
Without a doubt, Luffy is much stronger than Lucci at the moment. Even though he entered his Gear 5th state, Luffy is much stronger than Lucci, even in his awakened form.
They absolutely possess the weapons to take them on and combat, however, defeating them is a different question altogether. The Admirals and the Yonko are certainly not equal in power and the former will always reign supreme as the strongest in the One Piece world, which Oda once again showed in the previous chapter.
Kizaru is likely One Piece's weakest Admiral seen thus far. Despite having the strongest Fruit on paper of the five Admirals seen, he never utilizes it to its fullest potential. While still an Admiral and therefore incredibly strong, he's most definitely the weakest of the bunch.
It is a zoan type devil fruit, which gives him incredible strength and recovery. Lucci has a great deal of control over it and it has only improved since his last meeting with the Straw Hats. Sanji has enough skill to surpass Lucci in the future.
Conversation. Something interesting to note, all CP9 members are said to have observation and armament haki. Lucci was stated to have learnt it over the timeskip to get into CP0, so while they're not directly listed as such yet, this implies that all CP9 members made it into CP0!
One Piece fans should never underestimate 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.
Chopper expresses his sadness over not being able to fight and wishes everyone good luck. As Usopp watches Luffy battle Lucci, Marines approach him from behind. He turns and fires his Kabuto at them, but they easily dodge while jumping through the air towards him.
It's a secret technique that Lucci himself uses. Its more like advance Martial Arts rather than Haki. It bypasses Luffy's devil fruit due to its concentrated and internal assault. Armament Haki is known for damaging and inflicting pain on his body as well.
He is also a skilled user of the Advanced Armament Haki. It's impressive that Lucci was able to easily take down such an individual. Lucci's latest feats shocked One Piece fans. No one expected him to be able to clash with Luffy, who was using his Gear 5 form.
Former CP9 agent Who's Who was held to the same high standard as Lucci. However, Jinbe easily defeated him during the Onigashima Raid, thanks to his full-body Haki.
Sabo's presumed death by the hands of the Celestial Dragon was never actually confirmed. Here were all the hints that he'd later return in One Piece.
Armed with the Mera Mera no Mi, Ace was considered one of the strongest fighters within the Whitebeard Pirates. Ace used Conqueror's Haki subconsciously to knock out the members of the Bluejam Pirates. Biggest Feat: Ace died way too early, but his will is carried by Sabo.
Doflamingo revealed to Law that he was given the authority to command CP0 because he was able to hold secret information about Mary Geoise's "national treasure" which will shake the entire world if its extiensce is revealed in the eyes of the public.
Lucci wouldn't stand a chance. He's just not equipped for someone like Moriah.
1/8 Lucci Has A Terrifying Power Level Of 4,000
With an unprecedented power level of 4,000, Rob Lucci was decisively the strongest member of CP9.