Agree that Whitney, My Love is wonderful. I have reread that book so many times! Lisa Kleypas's Dreaming of You is also one of my favourites; my copy is looking very weatherbeaten these days!
Those lists remind me of all the romances I've read over the years that I'd forgotten, particularly from Julie Garwood, LaVyrle Spencer and Amanda Quick. I'd also forgotten how magical Laura Kinsale's Flowers from the Storm is.
Almost of all Kathleen Woodiwiss's novels are winners, except for the last one. The one with the Beauty & the Beast plot was memorable (unfortunately not memorable enough for me to recall the name, however

).
Ooh speaking of politically incorrect, Virgina Henley! I used to LOVE her books. Grand historical adventures. Very 80s and early 90s style though.
And I have to recommend Lisa Valdez's Passion! Has anyone read this? It's more historical smut than romance but is still oddly emotional and captivating. Again, one of my favourites. I have the second book from Lisa Valdez but I'm too scared to read it as the reviews indicate it's a real stinker.