Board Thread:Questions and Answers/@comment-26523695-20150623051830/@comment-4651179-20150623122731

It all depends on what you want to read. Right now, Battleworld is a mash up of the entire Marvel Multiverse, so most of the stories are something unusual to have seen in the Marvel Universe, and most of them feature just alternate versions of the character from the Marvel Universe, not the "real deal."

With All-New, All-Different Marvel, the Marvel Universe will be brought back, and the stories will be what they used to be: heroes fighting villains on a planet similar to ours without God Emperor Doom as their ruler.

I'd recommend you to read Secret Wars because it has been extremely good so far, but as a starting point, I'd suggest All-New, All-Different Marvel.