Tony's win with Melissa during the All Star Season is my all time favorite partly because I really like Tony.
I enjoyed the sheer fun of Donald Driver's win with Peta. Len gave him such a hard time about getting a 10, and Kathryn led the whole time. I don't think anyone thought Donald and Peta would win, let alone the two of them. Of course, it was Peta's first win, and that is always nice as well.
I favored Maks and Mel the season they came in second, but I suspect that personalities came into play with the popular vote when push came to shove. In my opinion, while they were not the better dancers, as a couple the sunny, happy, charismatic Julianne and Helio simply out shone the more temperamental, sometimes controversial, and sometimes sparks flying Maks plus Maks coupled with Mel who wasn't going to take much off of him! The results as sometimes happen was another popular upset vote with Julianne winning against Maks after he had led the whole time in judges' scores.
As for Val....he is not as controversial as Maks. While he doesn't strike me as flamboyant a figure as Maks, he also doesn't seem as temperamental and outspoken. I suspect if DWTS stays on the air long enough, Val will win his trophy in due time.