Well, things are heating up nicely! Pools B and C, and conceivably D too, are still very much open heading into the last round of games. For quite a few teams, the knock-out stages have already started before the quarter finals.
England are starting to improve, while Scotland look very rusty. That said, the Scots have a tendency to trip up England, so that's one match that can't be predicted with any certainty. Argentina must be fancying their chances to reach the quarter finals, though.
Ireland and Italy looks to be an exciting game, too: if Italy win, and they almost beat the Irish in the Six Nations, it will throw Pool C wide open.
Wales should beat Fiji, who haven't impressed this time round as much as they did in 2007. Still, there's some history there, and a bonus point to Samoa and a Welsh loss could see Wales down in third place (theoretically even fourth place, but I'll go out on a limb and predict that Fiji won't beat Wales by 122 points).