I use park hoppers for maximum flexibility. I don't worry too much about crowd calendars. I use my three FP+ reservations, and then decide what to do next. Ever since Disney became more transparent with wait times through the My Disney Experience app, I think it has helped to balance out the crowds... and when I do see one park with unusually good wait times on the things I want to do, it's easy to change plans.
If I've made a specific dining reservation, I might choose a park that's convenient to that reservation. I've found that this style of touring has been really great for maximizing fun without a lot of stress.
Context: we've been going 2-3 times a year for the past 11-12 years or so. We've gone at the slowest times, at busy times, and times in between. What I have below has worked well FOR US every time.We have been to WDW many many times and usually just go to the recommended park for that day. I was just wondering how many of you do that, or do rope drop, EMH, park hopping, etc. And I'm not sure if websites are allowed to be mentioned, but which one do you think is most accurate in picking the best park/day?

I just kind of follow both of their ways of thinking. We avoid EMH parks, we always do rope drop, We always do MK on T or W and avoid weekends.