Top 3 Roles?

Zero Dark Thirty
The Help
It Chapter Two

The one where she played a young Helen Mirren and she was a young MOSSAD agent on a team to capture some Nazi doctor in Berlin and she was supposed to feign wanting to get pregnant and the Nazi's diddling her while she's in the stirrups telling her "this is my finger, and this is my [medical instrument].

Bump

zero dark thirty
nocturnal animals
the fighter

The Help
Blackbeard
Crimson Peak / X-Men: Dark Phoenix

Never thought I would make a top 3 for Jessica Chastain, but here goes:

A Most Violent Year
Interstellar
The Martian

Molly's Game
The Debt
Mama (really an honorable mention, but a good performance).

1) Shark Exorcist (2015)
2) Case at Riddle Crossing (2015)
3) Subterfuge (2014)