Your best acting job out of the great cast

I like all your picks, Bark Buffalo was excellent.

Downey. Loved him in this.

This is one of the few movies where I can honestly say (IMHO), that I think everyone was excellent in their roles, one hell of an ensemble cast.
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Truth is no defense to the overarching goal of submission.

Downey.

Y'know, I could eat a peach for hours

Downey was great as usual, but Ruffalo's portrayal of Dave Toschi was one of my favorite performances by an actor. He was excellent.

I agree about Gyllenhaal. An understated, quieter performance than we usually see from him. Downey always seems to place a smart aleck type that I bet is his own personality, so not much of an example of good acting there. And Ruffalo pretty much plays every role he does exactly the same as every other role he has done. Only once or twice has Ruffalo stepped outside his own persona. In Spotlight he did. A tiny bit...