Necessary Ultimate Reads.

So I really want to be up to date with the current storyline in the main universe and I know Secret Wars is a good point to start since it sets up everything. I know it ends Ultimate though and I'm currently reading through Ultimate Spider-man from the beginning. I assume I should finish this before I read Secret Wars? Also what other Ultimate stories should I read before hand? I've heard mixed things about the quality of the comics that aren't Spidey