Well, this is a bit of a tough ones. There are shows I loved, like Smallville and Las Vegas, that ended. I wasn't really happy with the way they ended, but there were so many positive aspects to the show and they both felt complete after long runs that I was on the whole satisfied with how everything went. Then there are shows I loved like LOST, which had a fantastic run, didn't overstay it's welcome and wrapped things up beautifully (I know some LOST fans will disagree with me, but I was perfectly content with the ending). As much as I loved that show, I don't think I'd want more of it. The same with the Batman movie trilogy. You'll be hard-pressed to find a bigger Batman fan than me, but it had such an awesome ending that it feels complete. I don't need anymore, you know?
So, giving it some thought here, it's actually harder than I thought it would be to find a series that I'm dying for more of. The only two that really spring to mind are Buffy and Angel. Both had amazing finales that I loved, and if they never make another episode or movie of either series, that's fine. They both ended great. But at the same time, they both had, to a certain extent anyways, open-ended...uh...endings, which left the possibility of more. LOST or Smallville didn't do that.
You know what I'd love? A Buffy movie. A real, Joss Whedon directed and written movie with all the stars from the original series. Another Buffy or Angel season would be fantastic, but considering how much I loved the respective wrap-ups to each series, I'm more than fine with the way they ended. But I'd love a movie so much. I know it'd be tough (explaining Illyria would take some doing), but I think they could do an awesome movie with the Buffy cast and just Angel and Spike from the spinoff (they're all you really need anyways, and well, most of the rest of the Angel cast is dead).
A Buffy movie, where they finally have that Bangel ending I've always wanted (even though "Chosen" was pretty good)? That would be just fine with me.
