Back in my friskier days of college
I attended both "regular" Spring Break in Daytona/Jacksonville and a few weeks later Black College Spring Break in the same location ('94-97). And let me tell you - one was not any more worse, lude, or rowdier than the other. Both times, I stayed on the strip. I remember seeing public drunkness, fights, sexual acts in public and everything at both events.
During "regular" spring break, businesses were open and advertised, catering to the needs of spring breakers. There were police there, but sparingly. Streets were open and everything. No problems with hotels or nothing.
Now, During BCSB, many businesses were closed. There was only one way in and out of the strip. And police were EVERYWHERE like gangbusters! And don't get me started how hotels would institute their own "curfew" type restricitions or armbands to identify you as a BCS breaker.
But this is just my experience though.