What are the top 5 fastest boxers of all time?

[TitoFan]

Having fast hands.... and having fast, powerful hands.... are two different things.

RJJ certainly had both: incredibly fast hands, and power in each hand. SRL had deceptive power. He could pitter-patter you... but then sneak a hard shot in the flurry. Mosley had fast hands, but seemed to have sit down on punches to impart power to them. Pac definitely belongs on the list, and obviously has power in both hands. Camacho had incredibly fast hands, but again.... seemed to have to sit on his punches to put power behind them. For a guy with long arms, Tommy Hearns had deceptively fast hands... and of course, the power to go with it. With Aaron Pryor, I don't know whether to call them fast hands... or just the sheer volume of punches he would throw from all kinds of angles. Zab Judah, although a largely wasted talent, had very good hand speed and power to go along with it.

[IamInuit]

Tough to hold it at 5
Jones most likely the fastest ever
Leonard
Meldrick Taylor
Pepp
Robinson
Benny Leonard
Gamboa
Camacho
Ali
Patterson
Tyson

[ICB]

All the usual suspects have been mentioned here's some more underrated ones.

Greg Page
Howard Davis Jr
Billy Conn
Aaron Pryor
Larry Holmes
Ike Williams
Zab Judah
Terry Norris
Joel Casamayor