Wishes in general is romantic, but I've never found it romantic watching it from Main Street. It's just too crowded, and people mob for the exit after. The rest I'm not really sure I agree with. These are some of my favorites...most have been mentioned.
I love going to the beach at the Polynesian, furthest to the left, on the single porch swing. We always go there to watch Wishes.
Watching Wishes from the top of the California Grille.
Cinderella's wishing well. DH & I always go there and make a wish together.
Staying at MK to watch the Kiss Goodnight, and then walking Main Street together as one of the last people in the park.
Taking a carriage ride at Port Orleans at night