Well, as you know there are munchkins all over the place at Disney....but I understand what you mean.
I taught preschool for many years and although I absolutely love the 2 to 5 yr crowd, did not much want to be sitting right next to them while they squealed or had a meltdown while dining...
We found the CM's to be very understanding when we would ask for a table in a quiet area (of course we explained). This is not possible at all Table Service, but often - and we did not feel the need at every meal.
Anyway.. you asked about resorts..when traveling without children the only noise we've notice at the resorts (deluxe) would be when the children run down the halls squealing with excitement or crying after a long day. We've not noticed any while in the rooms.. 9The youngest we've taken was 4 yr olds - that was a hundred yrs ago).
Anyway...without children we've stayed at the Swan, YC, Poly, GF, POR, CBR, POP and AKL. I'd say, if possible, stay at a deluxe or CSR - which is a moderate, but IN the midst of a fabulous refurbishment:
http://www.disboards.com/showthread.php?t=2038865
Swan would be a good choice and with the Boardwalk there are lots of adult evening activities.
Any deluxe (maybe not WL) should be good...but CSR might be an excellent possibility.
Have a great time....and

to the DIS!!