If you had asked before Sept. I would have said YC. I hadn't stayed there in years and got a good discount so was there in Sept. Like all things, it just didn't live up to the memories. There was a leak in the main hallway so they had a bucket and a trash can catching water the entire time I was there, my view was the quiet pool which should have been o.k. but there were a group of adults that felt it really necessary to be in the pool late most nights. I also used to love that quiet pool, but evidently same adults didn't go to the parks at all so they had their cooler with refreshing adult beverages and about 10 of them staked out a part of the pool and were in there all the time. I'm not a fan of the main pool so that was a bummer. The resort just didn't seem to have the same sort of adult/relaxed vibe it used to have.
So now I'm going to have to say BWI, which actually used to be my least favorite of the Epcot resorts. I've stayed there maybe 5 times since the last time I was stayed at YC (before this Sept) and I never had a bad view, all the resort was working and I just have come to love the vibe.
Moderates would be CSR, but not the tower, I like the Casitas. Value would be whichever one is the cheapest at the time I'm going. Full disclosure, I only stay in the values for a night or two at the beginning of a trip on a split stay just to save a little money.
I've stayed at almost all WDW resorts except - AoA (which I will most likely never stay at since I'm not paying that much for a value), SSR just never been interested and can usually find something less, WL we don't spend a lot of time at MK so can usually find something for less in the Epcot area, RIV not a fan of the sky liner. I have even stayed at the Fort in our RV (will be there Monday) I actually tend to stay at Swan/Dolphin more than any of the others, Epcot is my favorite park and I love the Epcot area resorts.