No, he's definitely not creative.
His "creativity" comes from taking spiritual forms and adding them to his swordsmanship. He takes forms like the gorilla, the tiger, the dragon, etc.
- The single way you can call him creative is within the swordsmanship world because he dares to use an unheard of three-sword style, but all of the moves are still traditional swordsmanship with a slight supernatural element to them.
If you want to compare him to someone even less creative, though, Sanji basically only uses different forms of kicks.