I'm partial to the little area where Jack Skellington meets, but only when he's not meeting
They took away my Court of Angels, but they haven't taken away that spot yet!
I also like the courtyard area by Maurice's Treats, after the princesses have stopped meeting, and people forget that it's even there. I just sit and watch Rapunzel's tower sing and light up.
And you can walk through Pixie Hallow after Tink stops greeting.
There's the little pond that has the light show.
If I'm just needing some AC and to be out of the flow of traffic in the afternoon (common, I have a condition that gives me heat intolerance even when it's only 75*), I grab a bottled water and sit in the outdoor seating for Pizza Port, or any indoor show attraction (Tiki Room, Mr. Lincoln, whatever preview is at Magic Eye Theatre or Bugsland Theatre, Turtle Talk, the great room in Animation Academy building, even Disney Jr), though none of those are quiet.