I know it was broadly criticized even when it came out (so much that they toned the edge down in the sequels), but I always liked the Prince in Prince of Persia: Warrior Within.
People have always complained about his change in personality, lots of fans threw a hiss fit back in the day, but considering everything that happened to him during and after the ending of the previous game, I've always thought it was natural that he'd be pissed and lost his cool. I tend to compare his situation in Warrior Within with Ash in Army of Darkness compared to the previous movies.