I know a lot of people say that Game flows like an east coast rapper & using the same type of wordplay.
Anyway, in my initial point, I meant things like
The Diplomats referencing west coast beats ("Dope Man'", "Certified Gangstas", "Ambitionz as a Killah")
Fabolous and Jadakiss getting Nate Dogg to sing on their singles ("Time's Up", "Can't Deny It")
50 Cent hopping on Dr. Dre beats (and a southern flow, but that's another story)
Biggie and DJ Premier religiously studying The Chronic
Nas getting Dr. Dre and Trackmasters-impersonating-the-west-coast to do his album after his first one failed to blow up as expected.You don't get a lot of west coast or third coast cats doing the same thing to modern east coast rap. Sure, you've got cats pooh-poohing Jay-Z right now, but since the early '90s on, most of east coast rap's growth musically has just been a reaction to what west coast and southern hip-hop are doing.