Oden is 100% Samurai Luffy.
Oden is exactly like Luffy with a different fighting style.
1)Oden is obsessed with freedom like Luffy. He always wanted to be a pirate since he was a child like Luffy.
2)Oden has Conquerors Haki like Luffy
3)Oden has Voice of All Things like Luffy
4) Oden has Charisma to attract allies like Luffy and charm people
5)Oden was age 19 when he took over Udon and defeated Shutenmaru like, Luffy is age 19 right now taking out the Yonko.
6)Oden became Damaiyo at age 20, like Luffy will become Pirate King at age 20.
7) Oden has 9 Scabbards like Luffy has 9 Strawhats.
8) He causes chaos wherever he goes like Luffy.
9) Zero Navigational skills, kir Luffy
10) His trademark catchphrase" It's too Cramped"was said by Luffy in Dressrossa.
11) He likes Adventure like Luffy
12) They both attract women easily.
13) The Scabbards followed Oden without his consent like the Strawhat Grandfleet.
There has not been 1 place Luffy has visited without being in chaos, just like Oden.
Kozuki clan is 100% a secret D like Trafalgar Law's family.
Oden is 100% Samurai Luffy
Roger was also a Swordsman, so the Swordsman Zoro parallel does not work.