Am I the only on that actually likes the Sailor Starlights? What is everyone's problem?
So after you asked this question, you got a hefty answer about why people dislike the Sailor Starlights and it seems like a lot of people feel similarly.
I'm here to let you know that I agree with you.
I like the Sailor Starlights. *This entire post is specific to the 90s anime, just letting you know in advance!*
Yes, it's a shame that they basically replaced the Outers with the Starlights and that's why I will always prefer the manga (and eventually Crystal) version of Stars, but the 90s Sailor Stars anime has a special place in my heart and those versions of the Starlights are a big part of that.
In addition, the Starlights didn't take time away from the Inners. ALL of the Inners got focus episodes in Sailor Stars; in fact, most of them had at least two. I can understand people being upset that the Sailor Starlights were so heavily integrated into the story and into these filler focus episodes, but it's simply not true to say that the Inners were shoved aside for the Starlights. The Outers most certainly were (and it's a shame, because the few times we got to see Seiya and Haruka interact were PURE GOLD), but the Inners had a lot of screentime in Sailor Stars.
The characters themselves are actually great. Seiya is passionate, emotional, and kind of a player. "He" is very protective of Usagi much like Mamoru is, but Usagi herself notes that their auras are very different. Seiya proves that "he" truly cares about Usagi, even after Mamoru comes back and Usagi makes it clear that she's happy with him. Episodes that really stand out for me for Seiya include the date episode, the "bodyguard"/everybody-in-Usagi's-house episode, and the episode in which the Three Lights are trying to learn a new dance and Seiya is struggling.
Taiki, like others have mentioned, is a bit of an elitist snob. "He" is very cultured and appreciates things like literature and poetry, but I appreciate these things because we haven't really had a character like that on Sailor Moon before. Taiki clashes with Ami and it's very interesting to see play out, whereas people like Usagi and Makoto can bring out Taiki's softer side. I love the episode about the sick girl in the hospital, the episode in which Taiki recites William Blake and goes on a cooking show with Makoto, and the two episodes in which Taiki and Ami clash.
Yaten is a brat AND I LOVE IT. "He" is easily the most immature out of all three of the Starlights, but "his" disposition makes him such a b!tch and it's fantastic because we haven't had a main character like this before. At the same time, Yaten is hiding a lot of pain and regret that Luna gets to witness. Both the Luna-loves-Yaten episode and the episode in which Yaten is judging Minako's idol competition really showcase that underneath the rough and abrasive exterior, there is a good person.
The Sailor Starlights, overall, are abrasive people in the 90s anime. They're pointedly focused on their goal, even to the point of intimidating Chibi Chibi in order to get their princess' incense burner back. Taiki and Yaten are guilty of this more often than Seiya, but even Seiya's bouts of emotional storms make "him" inclusive in this abrasiveness. All the same, there is a reason for this: they lost their planet AND their princess. They have been defeated in the worst possible way. They don't trust people (especially other Sailor Soldiers whom they've been fighting against all this time) and they're so incredibly angry at themselves. It takes them a long time to forgive themselves for what happened -- or rather, what they failed to do.
As an aside, I always liked the fact that the Sailor Starlights actually turned into men in the 90s anime. Yes, it goes against what Takeuchi says about Sailor Soldiers, and they're just cross-dressers in the manga; all the same, as a young boy watching Sailor Moon, the Sailor Starlights' existence finally gave me the opportunity to have a character to roleplay as without feeling weird about it.
The episodes in which the Sailor Starlights and the Inners work together or interact in non-battle situations are really when their characters shine. I love Seiya's playfulness when he decides to scare the Inners at the summer camp. I love how Taiki knows just how expensive and rare the broken items are when they visit and nearly wreck that rich guy's mansion. I love how much of a b!tch Yaten is. I just love them. <3