In the initial draft by Oda, Chopper exhibited a more nuanced and vibrant persona compared to how we see him in the final version. The doctor of the Straw Hat Pirates has some standout characteristics that are both distinctive and enticing. The main feature that defines Chopper’s original style is his “reindeer form that attracts attention.”
Furthermore, there has even been a debate among fans regarding whether Chopper’s form as a reindeer doctor is still valid if he maintains his original shape or not. Many believe that continuously attracting attention is not beneficial for his role as a doctor. Nevertheless, Oda has managed to keep Chopper in the role of a doctor. Much like Sanji, who is a talented chef but also has his own quirks.
Some fans speculate that Chopper might exhibit more drastic personality changes, especially when he interacts with Franky in Punk Hazard. Of course, there are still many who prefer Chopper as he currently is.
Additionally, some people have drawn comparisons between Chopper’s long facial features in his original design and that of Chouchou, the loyal dog from the “Orange Town” arc, who stood guard at the shop of its owner until the Buggy Pirates wreaked havoc on the area. Ultimately, Luffy taught the Buggy Pirates a lesson regarding this matter.
