I'm so confused about the Marvel universe right now. I haven't read many Marvel comics in a long time, so can somebody point me to a through explanation on how this all works?
How does Miles Morales deal with a living Peter Parker? How many doubles of characters exist? I just don't understand. I've pretty much only been reading Batman and a bunch of Image comics for the last few years.
I'd also really just like to get back into X-Men, but I feel like there is so much backstory split into so many different books. What's the best X-Men experience right now? What do I need to know to understand it?
Chill out, child:
Miles Morales dealing with a living Peter is told in his own series that I think has maybe 2 issues so far.
There are only three "doubles": Old Man Logan (though 616 Logan is dead); Miles Morales; The Maker (Ultimate Reed RIchards. The Maker is busy being a villain in The New Avengers. Old Man Logan is part of the Extraordinary X-Men and also has his own solo title. Miles has his own book (
Spider-Man) and is part of the All-New All-Different Avengers.
As far as the "best" X-Men experience
right now...I can't recommend any of the ongoings. However: Uncanny X-Men doesn't require any prior knowledge aside from Sabertooth being "inverted," which means instead of bloodlust he is repentant (basically he's the vampire with a soul). All-New X-Men just requires that you know that the Original Five X-Men were brought to the present day. Extraordinary X-Men requires nothing. Probably the best introductory book to the state of things in ANAD Marvel.
Just pick up the books you want to read. They explain everything you need to know within the first issue of the book. At least all the ones I've read so far. The biggest thing you need to know is that Secret Wars is effectively a missing period of time in everyone's minds, so all the books just continue as they were. The other major thing is that the Terrigen Mists (what gives Inhumans their powers) is in the atmosphere, awakening Inhumans and also poisoning and sterilizing mutants. Cyclops apparently did some bad shit to stop the Terrigen Mists and was killed because of it.