Game better catalogue but Jada is better in every other aspect of being a rapper
Game does have more diversity of flows than Jada but there's something very plastic about a lot of Game's rapping.
He sounds very great when he's blacking out but it seems to lack a natural personality due to how much he bites flows and styles.
Don't get it twisted. Game can REALLY spit when he's in his element but Jada just sounds more natural and organic when he starts blacking out.
Game bites so many styles that it can become an uncanny valley. For instance, he raps very strong on "Too Much" which is one of my favorite tracks off of Doctor's Advocate but it almost comes across like borderline parody the way he raps just like Dr. Dre. It's a similar vibe to listening to "Compton" by Guerilla Black. Both songs have great raps and lyrics but the uncanny valley can make it sound like a tribute.
Jada has more of his own signature rapping style and even laugh compared to the Game which makes his bars stand out more.