Tucker,
Thanks for the crash course in comics
But seriously, its cool how you break it down, showing the different styles of each comic company...I always thought they were the same...
Totally different. For the most part, Marvel kicks DC's ass.
Marvel changed a bit in the 70's and 80's to create very cool "anti-hero" characters like the afformentioned Punisher, Wolverine, Ghost Rider etc.
Every time Marvel put out something cool, DC would scramble to try and match it (Characters like Lobo, etc) but they never pulled it off that well, IMO.
In the 80's Batman started to kick ass again and stopped being so campy thanks to the likes of Frank Miller and Alan Moore. The Joker was made into a pure psychopath in The Killing Joke, and he was so awesome that it is primarily the foundation on which Ledger's version was built.
In DC's Defense, the CCA nearly killed Batman. The old-school Batman from the 40's and 50's was cool as hell. Then after the CCA he became a bit of a pansy only to be revived in the 80's as a darker, more menacing hero, almost an anti-hero akin to the Punisher.
I would say that Batman was the biggest success of DC in altering a character to make him more appealing than the campy "bing zowie powie" crap that caused the old TV show. The new movies reflect that alteration quite well.
The 80's and 90's also brought a new age to comic books where some really cool stuff came out. Dark Horse comics (stuff like Sin City and Hellboy), Quality Comics (V for Vendetta) and Image Comics (Spawn) as well some other, lesser known, comic companies put out some awesome titles.
That's about it for me regarding the history of comics. It was about the mid-nineties when I really stopped collecting new titles and started focussing on expanding my current collections.
P.S. That collection includes a lot of great stuff, like a #1 Amazing Spider-man from 1963 and an Amazing Fantasy #15 (first apearance of Spidey) from 62. A #3 Fantastic Four Pretty much all of the first appearances of most of the major Marvel characters like the Punisher (Amazing Spiderman #129) and the Wolverine (Incredible Hulk #180).
Unfortunately, many of these are in no better than fair condition.