By Zack Quaintance — With this issue, Marvel’s massive War of the Realms event hits its halfway point, which is as good a time as any to discuss how it’s been so far. I’d like to focus primarily here on the main series of this event. The tie-ins are another thing, and we don’t have space for them here, so let’s instead take this comic as the third in a six-part series, independent from the auxiliary titles. In that context, it’s been very good, especially for any readers (like myself) who have followed Jason Aaron’s long Thor run…