I disagree. Usually, for me (and probably some other members) embedded videos have a longer load time and play slower, laggier, choppier if you will. I feel like saying "loading as it plays, and that's the only way." It will only load if you play it, letting it stay paused doesn't advance loading. And the bad part of that is that it reaches the end of "playable" video, stops, and another chunk of "playable" video is tacked on and it plays to that part, then another chunk is tacked on...so on, so forth... I usually just click on the YouTube logo in the video to open the vid in Youtube, because it loads faster and plays smoother.
But maybe it's just me.