I think p4p Kessler's might be a little more dangerous, as it's so damn sharp and fast. I'd still much rather get hit by one of his, however. Concussion > coma.
One has to wonder what the hell else you guys were expecting with a thread title like "perfect 1-2 combination". Should he have thrown in a backflip and "shoryuken" while he was at it?
Two knockdowns that come to mind of recent times from a nice 1-2 was Hopkins when he knocked Calzaghe down and Pavlik when he knocked Zertuche down. [yt]Zebku8KZfuI[/yt] [YT]HchCpnORAqk[/YT]
Buster Douglas had the best 1-2-3-4-5 combination I've ever seen. Watching that over and over again 2 things amaze me. How he was able to time and place those punches SO perfectly and how the **** Tyson was able to make it to his feet at the count of 9.
Carl Thompson vs Sebastiaan Rothmann springs to mind, espicially since it was 1-2 or bust for The Cat.
Rothmann's reset switch gets pressed at about 2:50 of the video - he has a difficult time re-booting. <object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/VUaVTXyjQbs&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/VUaVTXyjQbs&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>