Avengers: The Korvak Saga
Avengers Vol. 1: 159, 167, 168, 170 - 177
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so, what does a god do when he obliterates his captors, and returns to an alternate universe earth (that would be the marvel earth that we know and love) and remake it into a utopia of his own design. so, the Guardians of the galaxy (not the guys that will be in the movie but a time displaced superteam that consist of The Vision as their spaceship and captain america's shield as an ancient relic (again not trying to be snarky)) pursue korvak and warn the avengers of his plans to rewrite reality.
so, in classic avengers form they punch their problems away. and all get murdered in the process! i won't ruin the ending because as ridiculous as this story sounds it is absolutely timeless and a defining moment for the team and everyone that makes it up.
Avengers: Once an Avenger...
Avengers Vol 3: 1-3
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after being sent back, everyone goes about business as usual, except the ultimate Avenger, Captain america. he starts to recruit people he knows have dedicated their lives to the team. first being Hawkeye where he probably says one of the best lines in the story.
after recruiting a small rag tag team together, its off to war against Le Fey and her loyalist. obvious things get switched back, but the how and who pulls it off is what i'll leave to your imagination. of read the book. both work.
In this who's who of avengers,it's hard not to find someone in these issues and not go down the internet rabbit hole with them. the A-listers are good but if you want to see how deep the bench is on the avengers goes. this is the book to read.
Avengers: Disassembled/New Avengers: Breakout
Avengers vol 3 500-504/New Avengers 1-6
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Disassembled start Brian Michael Bendis's run on the Avengers. And he started it with a simple idea. what if the avengers just had a really bad day. now a bad day for you or i would classify as stubbing your toe and having your boss yell at you. but a bad day for the avengers would be a zombified version their recently deceased friend returning from the grave and exploding. then the vision would melt as he crashed a quinjet into what remained of Avengers Mansion. oh wait, She-hulk just went feral and is now rampaging! but hold on shouldn't Tony Stark be able to fix him, well, if he wasn't drunk he should be. and guys that was the opening act. there's an alien invasion, a death of one of the core members and an even bigger betrayal that literally fractures the team into pieces
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also, Spider-Man is just really funny and Luke Cage just busting skulls is a blast to see.
Young Avengers
Young avengers 1-12
oh, 2005. you gave us so much good avengers. its hard to keep track.
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i cant tell you how much of this book just works.I know this a big leap for you internet but, this is a must read if you just like reading in general. I want to give more specifics but i would hate to deprive you of the journey that these kids have. its heartbreaking/warming/maddening. just... just stop reading this and start reading that!