Aside from being floral in nature, the absolutes (essential oils) are DISTINCTLY DIFFERENT!! Jasmine (grandiflorum) is deep, sweet, complex, rich and, at full-strength, will smell fecal. Its about the most floral of florals that exist really. Tuberose is a higher-pitched sweet tea scent, similar to tagetes in a way. Neroli is much more a citrus floral, lightly sweet, clean with a delicious top. I doubt, if you have smelled all three of these, that you would ever confuse them.