If you can afford it, I highly recommend just getting Express and not sweating about strategy. I'd predict you'd still have moderate waits for Hellraiser, Terror Tram, and Stranger Things but you'll get everything done. Otherwise, be prepared to spend several hours in lines. It's looking to be a crowded year.
Regardless, it's best to work through either the entire upper lot and then the lower lot or vise versa (Killer Klownz will be on the lower lot). The Terror Tram closes early every night so make sure you're not saving it for last.
We're tired of the Latin America stuff because this is our fifth year in a row of it, but coming into it fresh it'll be fun for you.
Likewise, I'm very tired of the Purge show coming back for a fourth season, but it's a good stunt show and if it isn't crowded you should be able to get a good seat. Worth doing if you have the time.
The food has traditionally been not great imo but it was better last year and the Treehouse of Horror possibilities are intriguing. Wait and see on reviews. Three Broomsticks on the Upper Lot and Panda Express (yes, there's just a full Panda Express) on the Lower Lot are my go tos for reliably solid food.