5 visits over 9 years and still so much left undone.....
Resorts I have yet to see (I've not stayed at all not on this list but have eaten/explored at them):
PO, neither side
CS
All Stars, none
WL, (this past March the CR pool was closed during our stay so we had pool hopping priv. to WL and Poly, we almost got on the boat one day to go swim at WL and something came up

)
MK:
Hall of Presidents (seen DL's)
Liberty Square Riverboat (been on DL's and DLP's)
The Timekeeper
The Subs (they were open on our honeymoon, still kicking myself about this one)
have not eaten at LTT or Tony's
MGM:
Walt Disney, One Man's Dream (really meant to do this, got derailed twice)
Hunchback show

(kicking myself over this one too)
Sounds Dangerous (no interest)
WWTBAM
have not eaten at Mama's or Hollywood +Vine
Epcot:
The Circle of Life
Food Rocks
The Making of Me
have not eaten at the living Seas, Norway, China, Germany, U.S.A., Japan, UK or Canada and have NOT had a Beavertail

(tried, they closed early because of rain)
AK:
we have always left this park sooner than planned because it gets so hot and crowded
have not seen the Jammin Jungle Parade, or any parade here
Express Train nor Conservation Station
Flights of Wonder
Maharajah Jungle Trek
Pocahontas and her Forest Friends
none of the character greeting trails (we tend to "bump" into enough characters here anyway)
Dino-Sue (don't know how we missed doing this

)
Tarzan Rocks (didn't see the former show here either, Jungle Book because of a nephew's meltdown - heard the music from that show though

while sitting outside)
we have, however managed to eat at the Rainforest Cafe here and have breakfast with Donald despite our short stays
We've not done either mini golf yet
have yet to rent a water mouse (we really, really want to.....)
keep meaning to ride the boat over the water bridge between WL and MK (kids point it out each time we drive under it

)
Hayride, campfire at FW
Polynesian Luau or Backyard Barbecue (did HDDR instead

)
We've done alot of character meals but not:
Artist Point
Cape May
Coral CAfe
Gulliver's
H + V
LTT
Ohana/Minnie Menehune
Olivia's Cafe
Wonderland Tea Party
Come to think of it, we need another trip.........
