I have read JLA, on about my 4th reading of it.
Cyborg however, is partly machine, he is connected across thousands of computers, can access all kinds of information, can communicate with anything, and so on- it's much closer to a god of technology than Steel, who just is a scientist in a power armour suit.
Needless to say, while he made it work (largely because he had DC's most popular characters there as well), there were a whole lot of odd choices for characters in that run.
Vic was great in NTT, but id much rather see him on the current JL then the current TT.
First of all, Steel has never been a scientist. He's an engineer. Huge difference there (although not always obvious in Comic Book World). He's not trying to learn anything, or unlock any secret of the universe. He's just good at building things.
Second, Cyborg is also not a scientist, at least, last I checked (which was a while ago) he wasn't. He's a football player, apparently, and happens to also be in large part a robot. I don't see how either makes him a scientist. He might have learned a lot about Apokolipsian tech (and spent way too much time on the Internet) in the past few years, but only because that's what he's made out of, not out of any desire for knowledge.
I doubt either is familiar with the scientific method, confounding variables, double-blinds, chi-squared, and all the other vocabulary of a true scientist.
So comparing the two doesn't make a lot of sense. Honestly, I don't care which of them is in the League, if any. I just want the book to be interesting again.
I loved Wolfman Perez's original Teen Titans run, but goign forward I think it makes a lot of sense for Cyborg ot be on the Justice League, especially now that the current Teen Titans book is kind of lame imo.
I think being part of the Justice League actually elevates his character in a few ways. I wouldn't hve minded if DC kept the original New Teen Titans history. It would have been great to build on for future Cyborg stories, however, that wouldn't have made as much sense if DC wanted to make Cyborg a founder.
So just in reference to the new 52 I prefer him on the Justice League.
I like the new Titans book, but Vic definitely belongs in the big League these days. Pre-New 52 I liked him in that mentor role he'd evolved into, but in JL now he's just beyond crazy advanced. He's the guy that can spy on Batman. I hope he gets more development, they built him with a monster load of potential but haven't really done much with him as a character, yet.
Did Wonder Woman and Superman just catch an aircraft carrier?
So has Cyborg done squat in the Justice League yet? It's not really going to elevate his status if he never really gets a moment.
Currently reading: Nova, Deadpool, Swamp Thing (probation), GLC (probation), Manifest Destiny (probation)