My favorites:
Freesias
Zygopetalum orchids
Maxillaria tenuifolia orchid - coconut like scent
Oncidium Sharry Baby orchid - chocolate -like scent
Calamondin tree flowers- jasmine-like scent
And Jasminum sambac - I do not grow this one, but we call this Sampaguita in the Philippines, it is our national flower there..very sweet scent, it is often stringed into leis. I believe it is called Arabian jasmine here in the US.