I gotta agree with Smooth here. A rapper's flow is not based on different people's opinions, it's based on what their flow is like compared to other rappers.
Sorry Clinton and Smooth, but I have to agree with "¤" here on principle alone. A rappers flow is precisely based on people's opinion, but its also based on how they compare to other rappers as well. For instance, I could dislike Shady's "flow" [my opinon in this case, but not my real view on Slim], but admit that compared to others he's superior. So taste wise, I may not like his flow, but I could still note that its better than many other rappers. But to me, "flow" is more multifaceted than just lyrics, its about timing, metaphors, intensity, pitch, mass appeal, stage presence, etc. And there's no magical equation to compute "flow", which is preciesely why its a matter of opinion. I agree that in my book, Biggie is #1 with no equal, with Rakim #2, followed by guys like NAS, Shady, DMX, Pac, KRS-One [the latter 5 in no particular order]. To me Big had it all, and lyrically he brought a "flow" that helped the careers of everyone from Jay-Z to Nas to Lil' Kim to Mase to the Lox, and the list goes on and on. So to me Big was the pinnacle. But on the freestyle tip I rank Canibus and Shady right up there with him. So although I still think Biggie was the best "overall", there are some areas where the "flow" of others aren't that far off of the Greatest. But again, that's a matter of taste or opinion, which was ¤'s point, I assume.
Best,
P