I've been finding these interesting, I don't know if they were posted anywhere else though.
http://www.bloomberg.com/news/special-reports/battlegrounds-2016Some of them are kind of eye opening, like I didn't realize how small the Republican "voter base" is in Michigan, especially considering they hold so many state offices.
Also New Hampshire, apparently, has quite a large Republican base, and it seems the primary focus here is GOTV efforts more than persuasion. Ohio is the exact opposite, neither party has a large enough base to ensure victory, so both sides need to focus heavily on the swing voters.
I guess North Carolina was a bit surprising too, and maybe hard to believe.
I'll be Interested to see places like Florida, Virginia, and Colorado get done in the coming weeks. Is this the kind of things the campaigns focus on mostly? They probably have way more exact data to work with then anything we'll see.