I agree about Ken and Bergman being very different directors.
I always think Jean Luc Goddard and Ken share a lot. Goddard can be very political which Ken never is, but Goddard's imagery, such as in Weekend, could be from a Ken Russell film. Ken actually hates Goddard's work, and I don't think the one influenced the other (but I have nothing to back this up) but I think they separately came to similar ideas.
So, picking up on the theme, maybe Goddard is the French political Ken.
Iain