I didn't think s4 was bad...Just not as good as the others. It had some great episodes, and Spike was hilarious, but other then that things were so weird. The other seasons were so full of emotions, so many different emotions. Season 4 was mostly just loneliness...If that makes any sense. There weren't even any real crying scenes except for when Oz left. Which was another bad thing about s4. I love Tara/Willow, but I didn't like the way Oz/Willow ended, and the way Oz changed to almost a different person (I think he did anyway, he seemed so depressed compared to s2 and 3). It was all just so weird. And boring I guess...Riley and the Initiative and Adam and all that was all so boring.
It had some great parts about it, like "Hush" (and a few other episodes I can't remember the name of), the start of Willow/Tara, one of Spike's funniest seasons (A bear! You made a bear! lol)...I guess I'm just not a fan of changes...
And now I've been rambling on again...I have to learn not to post when I'm ill!