The elevators seemed quite "classy" at SSR when we were there -- it was weird entering them from the outside, and getting off of them to face the outside world, because they were decorated like, well, a hotel elevator! The halls were not a big deterrent or downside to us. We had just come from BCV and BWV stays, with their interior corridors. Frankly extenal noise is JUST as great in an internal corridor as external -- and we had no real problems at ANY of the WDW resorts. I think it's because they are just that well built, with quality doors to filter out sound, etc. We like the proximity in SSr and OKW of getting to our car when we want to, so the lack of an internal corridor is not bothersome or detracting to us (plus, it's so nicely themed and landscaped, it all just "goes" together!)
Now one downside to this, I must confess... at night, when we would amble the external corridors to get to the pool.... I was often met by some "friends" of the Kermitous variety. Frankly, I didn't recall seeing a single frog in the BWV hallways, nor did I feel deprived for it! I could surely live without the frogs. On the other hand -- my kids thought they were SWELL.
But hey, BCV had loads of little lizards just waiting to hop in my patio door and cuddle up with me (and I ain't talkin' the Geico dude, either.) So I'd say frogs and lizards and such are probably just a Floridian issue to be dealt with, interior hallways or not.