I never liked game that much, thought his first album was a bit overrated, DA was a 1 or two time listen, after that I just kinda stopped caring, he gets repetitive and isn't really all that original.
The only thing he does better than 50 is imitate other nikkas, he's good at ripping off peoples flows and weaving them in and out of his own shyt, but the name drops and the shape shifting was just kind of a turn off.
50 is can get repetitive as well but he has his own shyt, even with a nikka like banks on the team 50 was still probably writing the bulk of his verses, he never sounds like he's trying to be another rapper, has a better voice and much better song structure through out his career.