hmm, well alot of people will disagree with me, but i dont think flow is all that important.
what i mean is yeah, some of the rappers with 'good' flow are good to listen to.
But to me it all is about the lyrics. I know the delivery is important.
An example, Immortal technique by a lot of people is considered to have below average flow. But he is still a great rapper.
i think its important to get an all rounder , so i guess they are people like nas, pac.
Biggie could flow really good, but sometimes i did not like his lyrics on certain songs, so to me its good if a rapper can flow really well but its not the end of the world if he is not up there with other rappers in the flow department.