Who was the most complex Lannister character in Game of Thrones?

The Lannisters
Game of Thrones (2011)
Game of Thrones
TV
The Lannisters poll options
The Lannisters
Game of Thrones (2011)
Game of Thrones
- Tyrion Lannister
- Cersei Lannister
- Jaime Lannister
- Tywin Lannister