Since Los Angeles, New York, and Florida were mentioned. Are you talking about the City of Los Angeles or the county? New York City or New York State? You throw Florida in there, which as a state, makes the other two ambiguous. Next would be how are you basing this information. Primarily on response time from an emergency call, case closure rate, crime per capita?
As an aside, the LAPD (city) does not have a very good reputation. Brutality, corruption, racism, all the standards are there. NYPD have pulled themselves up and certainly have a better reputation than even ten years ago. Florida is too large to comment on at this time.