This is completely hypothetical. Given the choice for each, which would you prefer?
Deluxe: Contemporary, Beach Club, Wilderness
Moderate: Coronado, Riverside, Caribbean Beach
Would love to take a vacation at some point in 2021 (after COVID 19 has mostly gone) and to me those are my favorites in each category. Because that's so far out Disney doesn't even have it available for booking (or at least that I can see). Just trying to get opinions on resorts before having a serious discussion about where to stay
OK, my opinion on what you listed:
Contemporary - Wonderful access to Magic Kingdom (obviously) and very roomy rooms. The pool is a bit underwhelming as is the rest of the theming (though I personally like the rooms), but I really love this resort. Warning if you use bus transportation, it does share a bus which can make rides long to the other parks.
Beach Club - Fantastic access to two parks (EP and DHS) that can't be beat, amazing pool complex, and comfortable rooms. We stayed here in January and while we love to mix things up a bit with resorts when we visit, we'd totally stay here again. Great resort all around and the crescent lake area is really great. Was not impressed with shared buses, though. But you only have to worry about buses for two parks.
Wilderness - One of the best themed resorts on property with an amazing lobby, small footprint, and great boat access to MK. Rooms are on the small side for a deluxe and haven't been updated in quite some time (they're redoing them now, but I have no clue how far along they are or when they'll be finished). But it's also consistently one of the more affordable deluxe and is a great resort overall. Shared buses do apply still to and from some parks.
Coronado - One of the best resorts on property in my opinion. Fantastic rooms that are well appointed, beautiful landscaping, wonderful pool, many restaurants to choose from. It also has a gym if that matters to you and is the only moderate with one. I think it's the most deluxe feeling of the mods and is very centrally located so it doesn't take long to get anywhere on property from there. I have stayed here more than once and loved it each time and I have always thought the buses were great. Plus, it never feel crowded there, at least the times I've stayed.
Riverside - We love the theming and the rooms at POR, but the last two times we stayed here the buses have been absolutely abysmal. Getting to the parks in the morning isn't difficult, but coming back we gave up and took an Uber about halfway through our trip. Last trip, the lady controlling the POR bus lineup at MK made my 8-year old cry, so I don't think we'll be back.
Caribbean - Not stayed here but I'm keen to because of the skyliner access. My only reservation about it is that I don't want to stay in a pirate room because they only have full beds and that seems to be the only thing available when I try to book it!
Hope this helps! Good luck with your choice! Personally, when I can't make up my mind, I go for a split stay!