3. Batman.
Yes. Batman. Oh, it wasn't flashy like the Dr. Light and Firehawk makeovers. And it didn't happen in Crisis on Infinite Earths on panel, but it happened nonetheless.
Let's see what Bat



A wide-eyed goober, superpowerless from the waist down AND the waist up.
Sorry, gang. I'd love to blame Wolfman for this, but I can't. That's really how the Bronze Age Batman was.

In the Bronze Age JLA, even Aquaman could hit hard. But useless (Hi, Marv!) Batman mostly got stuck just piloting some Batvehicle. He spent all his time hanging out with -- how do I put this in a loving and supportive way? -- third-rate schmoes. Elongated Man,

DC made a huge deal out of re-starting Superman and Wonder Woman, post-Crisis. Clever bit of misdirection, that. Yeah, Clark and Diana shed lots of their excess backstory in a big hypertime yard sale (I was there, and let me tell you, Alex Ross and Phil Jimenez are vicious little shoppers ....!). But, when you come right down to it, their personalities and costumes stayed nearly identical to their pre-Crisis versions.
But Batman? Well, this is Batman post-Crisis:

And that's before Jason got killed and he started to turn really scary.
The modern age Batman can star simultaneously in 11 different titles, guest-star in 3 others, appear in the second issue of every new series, and alienate the superhero community and the GCPD, while cobbling together a world-threatening omniscient artificial intelligence in his spare time. The post-Crisis Batman is more like the Golden Age one; he can defeat the arsenal of a terrorist country using only a paper clip and a Q-tip, increase voter turn-out through sheer force of will, and automatically cause anyone within a twenty-foot radius to have 34 percent fewer cavities. The modern Batman doesn't stand around uselessly during a Crisis ... he causes it. You show 'em, B-man!
Fooey on all those of you who think you want back the pre-Crisis Batman because this one "is a jerk"; I say you've forgotten what he was like. The post-Crisis Batman was the REAL Sensational Character Makeover of 1986, and don't you forget it!

"I'll get you for this, Scipio! Halo, help me!"