Neofinetia Lou Sneary has several beautiful, highly fragrant clones. My favorite is 'Blue Moon', even though I havn't seen it in person and can't find it anywhere.
Also:
Bulbophyllum ambrosia: honey, almost too sweet
Lycaste aromatica: cinnamon
Oncidium ornithorhynchum: complex sweetness, overall effect is brown sugar
Phalaenopsis mannii: mandarin oranges
Trichoglottis philippinensis: ripe or baked apple
Maybe a little redundant, but I'm also putting in my vote for Onc. Twinkle and Max. tenuifolia...now to figure out how to put the lime in the coconut (orchid)...