The "E3 trailer" is possibly the most important trailer a publisher can release. One trailer can generate an entire year of rabid fan hype. Despite the somewhat unimpressive scale of this year's "E3-in-a-shack," a foaming tidal wave of juicy trailer data has been clogging gamer's bandwidth for the last three days. So what do you watch? Let Games Radar be your guide - they have put the top seven best trailers of E3 2007 into a handy list. And, for a little contrast, they have also included seven of the worst trailers of this year.