It's got to be Broughty Ferry park, the one next to the castle. Bouncy floors, a great climbing area- for tiny tots and bigger ones, and a great wet play area.
I think I'm drawn to it because I used to play there when I was little. Mind you the bouncy floor was gravel, and the wet play area was a concrete death trap for children. Honestly, even as a kid I was frightened of it!