I pronounce it /ah
LEE sha/.
I know an
Alicia pronounced /ah LISH a/ and an Aleisha pronounced /ah
LEE sha/.
I like /ah LISS ee a/, but I'd spell that one
Alyssia -- it looks kind of like the flower Alyssum.
I definitely think
Alicia Silverstone had an influence on the 3-syllable pronuncuiation.
Alice.