Blues I have:
Purple Heart - OK scent
Melody Parfum - HEAVENLY scent, gorgeous form
Escapade - Good scent
Babara Streisand - Good scent
Angel Face - OK scent
Blue Girl - Very good scent
Sterling Silver - Good scent
Stainless Steel - OK scent
Singin' the Blues - OK scent
Royal Amethyst - OK scent
English Perfume - HEAVENLY scent
Tardi Gris - Good scent
Poseidon - Good scent
Magenta - Very Good scent
Blue Bayou - Good scent
Orchid Masterpiece - Good scent
Silver Cloud - Poor scent
Macho Man - Good scent
Othello - HEAVENLY scent
Intrigue - Good scent
Heirloom - Good scent
Midnight Blue - Poor scent
Wild Blue Yonder - Poor scent
Outta the Blue - Very poor scent
Lavender Lassie - OK scent
Lavender Dream - OK scent
Lavender Simplicity - Good scent
Memorial Day - Good scent
Fragrant Plum - Very good scent
Paradise - NO scent
Koko Loko - OK scent
Rhapsody in Blue - OK scent
Purple Splash - OK scent
Clare de Lune - OK scent
Silver Star - OK scent
Ebb Tide - Poor scent
Nicole Carol Miller - Good scent
Voluptuous! - Very good scent (not sure if you want to put it in the "blue" category as it's a fuchsia/magenta)
Charles de Mills - Very good scent
Cardinal de Richelieu - Good scent
Cardinal Hume - OK scent (in the "violet" family, not really "blue)
Natasha Monet - Good scent
Florence Delattre - Good scent
Blue Heaven - unknown - didn't bloom
Purple Tiger - unknown - didn't bloom as I just got it
Ruby Voodoo - unknown - didn't bloom
I may have missed one or two.. I can't think right now of any more that I may have.