Best nominated performance directed by William Friedkin?

We really should be choosing from 10 performances minimum here, but these 5 are all top stuff, so he's getting his poll anyway.

My vote goes to Jason Miller, who should have been nominated in lead, with von Sydow taking his place as a supporting nominee.

Hackman.

Hackman I guess, but this is a poor lineup.

Personally, no I don't think so.  If anything I think it's a little underrated.  I think people sometimes denigrate this performance because of the (excellent) voice work Mercedes McCambridge, making up part a large part of what you hear; but there was more than enough of a performance from Blair, pre McCambridge, and during McCambridge, to more than justify any plaudits she received.  She was definitely superior to the leading performance that won the Oscar.