Izzie has been one of my favorite characters from day one, but she lost her edge this past season, and hasn't improved so far. In truth, the show itself has lost some of its spark, and I hope it can get back on track. Last week's episode was very good, though, so hopefully that's a good sign. Now, would Grey's Anatomy be the same without Heigel? I don't know. If her character doesn't improve, then I don't think it will matter if she stays or goes. If the old "Izzie" comes back, then I would hate to see her go. Hope all of that made sense. LOL!