>>211617360
>Bastila had much more impact

Bastila was a spoiled brat who was turned to the dark side with painfully contemptuous ease.

>spends a couple weeks (at most) in Malak's torture chamber
>get convinced to switch allegiances and (possibly not metaphorically) suck his dick, betray everything she knows, and pledge herself to the Sith cause

Anakin on the other hand took years of careful manipulation on the part of Palpatine as well as his own growing despair and disillusionment to switch sides.