I am also a certified Aeris hater...she sucks in batle and out of it.
I always saw her as a block standing between Tifa and Cloud, it pissed me off when Caith Sith make that stupid fortune tell that she and Cloud were a perfect match. She is just as annoying as Rinoa from FFVIII.
And while some people say they almost cryed when she got killed by Sephiroth well i almost laughed!

Donīt even no whatīs the point of making her appear in FFVII:AC.