AciT had the best character design model in the entire franchise, in my opinion. I just loved Ratchet's design in it along with Clank's. I loved playing A4O, but the character designs had me asking; Why!? WHY?!
For starters, everything seems too cartoony (I don't think that's even a real word XD). He lost his fuzziness and made him look younger, almost childish. In A Crack in Time, Ratchet looked so mature and well-proportioned and let's not forget how fuzzy his fur was
And what's up with Clank's head in All 4 One? It looks too big for his body. To be honest, even Qwark's and Nefarious' design bugged me. Overall, A Crack in Time (in my opinion) was the best Ratchet and Clank game!