From You Tube:
For comparison, from Google Video:
I'm not sure which video system I prefer, although the controls on the You Tube version do scale down better to the size I'm forced to use just in case anyone is still viewing this site in an 800 x 600 resolution. (If I use images wider than 275px the site breaks down on low resolution screens.)
You Tube was much easier to use to get the video uploaded (no software installation required) and the video was available almost immediately. Google Video required an uploader to be installed and my video wasn't available for 3 days. However, as an early adopter of most things Google, I'm biased toward most services it provides.