Yeah Ghost Trick has one awesome art style. But the animations were at the top, Cabanella especially stole the show. Best animations of last gen, with Punch Out Wii and Elite Beat Agents easily.
Also the team that did Ghost Trick and Dual Destinies are actually different. Shu Takumi's team (The AA trilogy) did Ghost Trick, whereas the guys behind Ace Attorney Investigations did Dual Destinies. Shu Takumi had nothing to do with it actually, since his team are busy with AA vs Layton.