like the smell of sweet smelling cigars in the Captain Cook hotel in Anchorage.... reminds me of the Alaska Federation of Natives Convention held every October in Anchorage----love the memories!!!
I think both are very powerful in terms of evoking memories. Scent might be just a tad stronger to me.
I used to save old perfume bottles in high school and college. Sometimes the scent wears off, but with a lot of them I can still take them out and feel transported back to a different time -- it's really neat! Sme with the smell of old school buildings and certain foliage.