Have had a 360 and sold it when baby came along two and a half years ago as had no games playing time any more
Now got a PS3 which I use partly as a media center thingy in her playroom to play all her Dora The Explorer and the like on. PS3 is IMO superior technology and the fact that it doesn't sound like a 747 on take off owing to ridiculous fan noise makes it better suited to this role, plus the Blu-Ray playback is a bonus.
All that said the games on the 360 were as pretty much everybody says better overall.
RSK