Here are a few smells my friends and I stated were our favorites.
Nothing like the smell of camping camp fire
The smell of eucalyptus
nothing like the smell of BBQ in the summertime
this one's my sisters favorite, the smell of the pirate ride at disneyland
Pine trees reminds me of christmas time
not just any rain but a summer rain, that smells like earth
Orange leaves and blossoms, remind me of my hometown
And of course nothing like the smell of ocean spray