I stopped watching this show sometime last fall but I tuned in to see the finale. Of course I didn't know the stories immediately leading up to this last episode such as that of Wilson's cancer, but it didn't really matter.
Interesting the people who House talked to in his conversations with dead or otherwise departed people. I could actually imagine that Kutner would have weighed more on his mind these last three years than, say Taub or Chase. I don't doubt that Amber has never been far from the forefront of his consciousness, with her three-way relationship with both him and with Wilson. Stacy was another natural. Cameron isn't quite as natural, but I could see her in the back of his mind as a potential love lost, even if he could never admit that to himself. The most glaring omission from the list was, as mentioned by others, Lisa Cuddy. The single most important female in House's life over the sum of seven seasons. I have to imagine that the show's creators would have featured her in the finale if they could of, but that issues such as money, scheduling, or just Lisa Edelstein's own preference made her appearance impossible.
I just shrugged at this finale - I didn't feel strongly about it one way or another, nor did I regret dropping this show from my viewing repertoire months ago. It was a strongly compelling watch at one point, but in my opinion it had been fading for years.