Best DC Developed Characters and worst?

[TheManhunterfromMars]

Characters changed and characters not changed (so much) over the years, characters that went from worst to best or from best to worst.
Example: character has a glorious/ horrible time in selling matters, writting and/or maybe a good/bad moment in general in his/her life. Best and worst characters and why, can you answer?

[BohemiaDrinker]

Wally West because post-Crisis, and later Wally West just because.

[Jackalope89]

Jason Todd.

Pre-Crisis, he was a blonde Dick Grayson knock-off. Post-Crisis he became the street kid with the moxy to steal Batman's hubcaps.

And again, pre-Flashpoint, after Under the Red Hood, Jason was basically a villain. New52 onward, he's been an anti-hero/hero. And since, particularly under Lobdell, Jason has flourished as a character. Just don't let Morrison back on him anytime soon. Or at all.

[LifeIsILL]

Ronny Raymond and Martin Stein. Two opposite but conflicted characters, one from a failing family and another in a failing marriage, they have some of the most interesting villains in all of DC. Now haven't seen those 2 characters in a decade.

Rainbow Raider, unique villain with a humorous but sad backstory. Haven't seen him in a decade either.

Bane. Self-explanatory. He should have been a mix between Deathstroke/Kingpin/Lex Luthor but they constantly make him some clown.

Doomsday. Shouldn't he be sentient by now? I know in one alternate future he fought alongside Superman but what have they really done with him?

[Fergus]

Damian Wayne comes to mind when it comes to well developed. Dick Grayson, Superman and Tim Drake till he turned into a knock off bruce. Also Ra's is extremely well developed.

[Fergus]

Jason Todd.

Pre-Crisis, he was a blonde Dick Grayson knock-off. Post-Crisis he became the street kid with the moxy to steal Batman's hubcaps.

And again, pre-Flashpoint, after Under the Red Hood, Jason was basically a villain. New52 onward, he's been an anti-hero/hero. And since, particularly under Lobdell, Jason has flourished as a character. Just don't let Morrison back on him anytime soon. Or at all.

What is he now?