These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Rescued from the Scrappy Heap: Jason Todd was one of the least-liked Robins, to the point where fans actually voted to have him killed off. However, this version of him seems to have gone over much better with readers.
The softening his character got from Chaotic Neutral (at best) to merely Chaotic Good but selfish and as a middle child acting out for attention helps.
The Woobie: Cassandra Cain/Batgirl. We only see her for one page in "Rivalry, Part One", but it's all anyone needs to feel sorry for her.