Well, if you ignore the fact that the writers apparently decided to forego writing an original story in favor of copying the plot directly from "It's a Wonderful Life," this episode... really wasn't that bad.
In fact, as far as series finales go, it was really quite good. Let's see:
- It included all of the major characters from the series. Not only that, but it gave those characters meaningful parts and real closure, not just lip service. I'm especially thinking of Tessa, here.
- It had closure for Duncan.
- It had a really good fight and Quickening.
- It had a very good montage at the end. The montage was well-edited, it covered all of the important people and plots over the years without taking too much time, and it actually fit with the overall style of Highlander. I especially liked the fact that it came full circle in the end - this is what Highlander is all about.