Synopsis: Most people’s lives are boring most of the time. Data’s is no exception.
Memory Alpha Summary: Dear Mr. Henshaw Bruce Maddox
Review: I’m always up for episodes about Data, but this one simply doesn’t work. There’s just too much going on. We have this plot with a Vulcan ambassador meeting with Romulans and there’s just no tension, because we keep breaking for Data to feed his cat or take dancing lessons.
One curious thing Data says is that Vulcans are incapable of lying. Nevermind the fact that Vulcans do occasionally lie throughout the series, lying would seemingly fit just fine with Vulcan philosophy, as it is sometimes the logical thing to do.
We also meet Keiko O’Brien, one of the better supporting characters on the show (and the next one).
Death By Troggles 
Kinda curious how you can say this one simply does not work, and yet it’s several dozen eps up from the bottom of your list. Maybe it doesn’t work well, but I’d say it still works.
Keiko doesn’t show up until 4th season? Huh.
It’s still in the bottom half.
I think I just didn’t list specific things I liked about the episode (i.e. sum is worse than its parts), and considering how much I generally like Data episodes (and how much the internet gushes about this one in particular), I came off a little hyperbolic.
I think this one might be lower on my list.
I also think the one with Data’s daughter would be lower on my list.
I think I tend to dislike a fair number of the Data episodes, since they usually tend to suffer from the audience knowing more than the characters.
interestingly, Data’s Day is one episode where the audience definitely doesn’t know more than the character, because pretty much the entire episode is from Data’s perspective
Right. I would probably have this higher than a couple of his episodes. I think the problem in this one is the lack of urgency, not the knowledge issue.
exactly. While it made sense from the perspective of the story (Data doesn’t have feelings, so he would never feel a sense of urgency, at least in the way humans would), it simply remained an interesting story rather a satisfying one.