This season is much better than many people make out. I think this is because, at the time it aired, fans were beginning to grow tired. I remember not liking it very much, but now I've watched it again, I really do rate it highly.
The writers earnestly tried to prepare for the end of the show, an event which would turn out to be three years away as it happened, but which looked likely even as 'Requiem' aired. As a result, some loose ends are tied up, and not many new questions are raised until the last episode. Still reeling from Two Fathers/One Son in series 6, there is possibly less mythology than any other season. This vacancy gave the show room to play with some new ideas: a story from the monster's perspective in Hungry, a Cops-style fly-on-the-wall documentary in X-Cops, a con-trick caper in The Amazing Maleeni, a genie with three wishes in Je Souhaite. The stand-alone episodes vary in quality a little more than in previous years, but there's some good stuff here.
Rush, Hungry, Sein Und Zeit/Closure, En Ami, all things, Requiem
Episodes I remember not liking, but enjoyed this time round:
Millennium, The Amazing Maleeni, Orison, X-Cops, First Person Shooter, Je Souhaite
Signs & Wonders - you'll see it coming
Fight Club - I can't believe Chris Carter wrote this one thinking it would be one of the last episodes of the show!