I wasn't a huge fan of Bendis's Avengers stuff (didn't mind it too much) but all the X-Men stuff has been amazing since he started there!!
static0verdrive's forum posts
Considering Magneto has been on the x-men for quite some time I'm not sure if it's fair to call him a villain any more. I've always like Apocalypse myself, and Mr. Sinister (and love their ties).
Cap10ate's post is pretty solid. Once you're caught up and ready to read Age of Ultron, I posted a reading order on my blog: Age of Ultron Reading Order
So far it's been pretty crazy!!
***SPOILER if you're not caught up to #5*** I'm just fuzzy on how the present can be so messed up if Ultron is controlling things from you know when... Did he change something in the past too??