Taylor and Zab both have short arms. It's easier to get punches in (combos) thus looking faster. More important accurate speed will go to Floyd.
Taylor threw fastest, thing is they were mostly pity patter punches. Zab threw hardest, for around 4 rounds, he then pretty much stops throwing atall... Floyd is the most accurate, and can throw with the same speed for 12 rounds, I think he got the best deal.
All good opinions in here. I think floyd is the best at putting out the most accurate one twos at the perfect time. Meldrick put out flurries like nobodies business, but weren't always that accurate. Zab in my opinion was just amazing at 140. Feet were were fast, upperbody movement fast, an punches thrown ******edly fast with good power behind them.