we decided against the teardrop/posey discussion for exactly this reason - and went with "sheaths" of roses instead - i had a larger and mixed color sheath (red and white), bridesmaids had white only.

i was part of another wedding where both bride and bridesmaids had sheaths of singapore orchids - bride had a paler shade of purple, bridesmaids a deep purple

just as another suggestion to confuse you more!