Let's count down the three most crucial battles in the rap-history.

Number 3
The Bridge Wars:
This battle was all about representation, which is one of the biggest parts of the Hip Hop culture, wether it's grafitti, Breaking or rapping we're talking about. We had the Bronx up against the Queens.
"Manhattan keeps on makin it, brooklyn keeps on takin it
Bronx keeps creatin it, and queens keeps on fakin it"

Number 2
Cypress Hill Vs. Westside Connections

This battle is crucial, 'cause it really showed the effect rap had on the real life. We had Cypress H. going at WC, and all of sudden, we had the Latinoes going at the blacks in LA.
Luckely, this beef was squashed, otherwise it might had resulted in an interracial war.

Number 1
The Real Roxanne Battle

This battle is not here because it resulted in any physical violence, but this battle showed, that you can sell alot more records, by adressing somebody in it!