I think 5-point scales work fine depending on where they're being used. Like for X-Play, they get the point across just fine, having gone into a detailed explanation of what they think a game should get, and then they stamp the score on it at the end for good measure. I don't really even pay much attention to their scores, aside from the comedy value when a game gets a really low one. I'm more interested in the actual opinions, since just five points can't really portray how good a game is. I mean there's lots of games I'd give 4 out of 5 stars, since they're above mediocre but below awesome. So like I said, it's the explanation of that score which makes the difference. As for a website such as Gamespot, I think the 10-point scale works much better, because I can look up a game and at first glance see a more accurate rating of how good a game might be without reading the review itself. Because this is the internet, and I don't know how to read.
I SAY WE USED THE ONE HUNDRED POINT SCALE FROM NOW ON.