These are my favourite:
1.Olivia de Havilland-The heiress
2.Vivien Leigh-Gone with the wind
3.Jodie Foster-The silence of the lambs
4.Jane Wyman-Johny Belinda
5.Ingrid Bergman-Gaslight
I agree with a couple. These are my favorites, not necessarily in order:
Geraldine Page - The Trip to Bountiful
Vivien Leigh - Gone with the Wind
Charlize Theron - Monster
Jane Wyman - Johnny Belinda
Anne Bancroft - The Miracle Worker
Though it is difficult NOT to include Olivia de Havilland and, maybe, Meryl Streep for Sophie Choice