On the subject of favorite cast members, I kind of want to be the guy who actually places Rarity highly. See, it's not something I would have thought when first seeing her character, but over the course of the series, I've noticed that she's just a really
good person.
And not just in Suited For Success, though that is a very good example of how she'll do whatever it takes to help her friends, even if it defies every artistic sensibility she has. There's also "Green Isn't Your Color", where she realizes right off the bat how petty her jealousy towards Fluttershy's position is, especially since she got her there by begging for her help in the first place. In another show with this kind of episode, the person being jealous probably wouldn't be so self-aware until the end of the episode, when it's time for them to learn their lesson. Rarity knows how petty she's being, and even though she can't help feeling jealous, she is determined to not let her feelings interfere with what she honestly thinks will make her friend happy.
Or even "Sonic Rainboom". Yeah, she went off the deep end, but the only reason she got those dangerously fabulous wings in the first place was because she volunteered to basically be a guinea pig for a difficult spell that Twilight hadn't even
tried before. If it would get them to Cloudsdale to help Rainbow? Anything. It's interesting, how the person who was most prepared to do whatever it took to help Rainbow get over her fears was the one to most completely lose track of the original goal.
There are also little things, like "A Dog And Pony Show", where she really tired to be civil with the Diamond Dogs. She was
happy to show them some gem caches, until they tried to make her their slave. And part 1 of "Return of Harmony", where she resisted Discord's temptation the second-longest, or "Lesson Zero", where she was the first one to start worrying about Twilight, before the picnic.
...I dunno. I like her because it becomes clear that she really wants to do the right thing, and make people happy. And if she's a bit vain? Well, I think she deserves to do a bit of preening. She really is that good at what she does.
I have a message from another time...