I'd argue game trailers for the Internet and TV commercials are two different beasts.
In game trailers, we expect to see actual gameplay, shiny cinematics and a clear statement of both the release date and the platforms. But in TV commercials, there's also the expectation of amusement and brevity because we want to get back to our TV show.
So with that in mind, let's take a look at these two DJ Hero ads and see which one is the better commercial. I confess that I'm biased because the "Sparkly Balls" one has been following me around on Adult Swim relentlessly, while the Daft Punk I'm only just seeing for the first time today.