I'm dis-including The Doctor because he's an obvious favorite but out of the rest, who/what is your favorite hologram/usage. Though I liked Stephen Hawking showing up Data, Isaac Newton, and Albert Einstein at poker, DaVinci and Janeway are my favorite mix.
Countess Regina Bartholomew. I do hope she wasn't "killed" at the end of Generations. But we didn't see Reggie in that movie so maybe he was off the ship and took her with him.
I'd probably go with the Countess as well. If he was included in the list he wouldn't rank very highly for me, I find the Doctor to be obnoxious.
Yes he was brilliant in that role. The scene where he describes eating with fury and contempt is really nicely played. I also liked Moriarty. I'm surprised no one has said him yet.