Of the 7 best picture nominees I've seen, I'd have been fine with either Oppenheimer, Killers of the Flower Moon, or Poor Things winning. (I haven't seen Zone of Interest, Anatomy of a Fall, or American Fiction) These three were clearly superior to The Holdovers, Maestro, Past Lives, and Barbie, IMO.
Of the three I think Killers of the Flower Moon was the finest crafted, and Scorsese would have been my pick for Best Director. Is there anything at all to criticize from a filmmaking perspective? I can't think of any. If best picture meant least flawed, this should win, so I'd have no problem if it did. It was also a shame this move was not nominated for best adapted screenplay, as the screenwriters made a lot more interesting decisions when translating from the source material, compared to Poor Things and Oppenheimer.
Of the three, Poor Things was the most entertaining. It was also the most thought provoking while watching (it felt less rich compared to the others when reflecting on it), had amazing cinematography, best score, best production design. Usually that would mean it's easily the best in my book, but the complaints I've seen written here about Oppenheimer I felt a lot more strongly about Poor Things - to me it felt longer than the others, despite being basically an hour shorter, the 2nd half really drags, and it has a very unsatisfactory final act or conclusion, feeling very cliche, leaving more questions for me about the filmmaker's decisions rather than the questions filmmakers were trying to ask. While the cinematography was amazing, it was also quite distracting at times. Despite that, it succeeds at such a high level in some manners that I'd have no problem it being awarded Best Picture.
Of the three, Oppenheimer felt by far the most ambitious, thematically complex (I wouldn't be surprised if it touches on all the themes of the other two movies as well), and feels like one of the best edited films ever (wouldn't say that about the other two for any aspect). I can't think of any movie edited as well. Definitely the first courtroom movie edited like an action movie? Another poster commented on how mundane things are like security clearances and what not, which is true, but for me this is just one aspect that made the movie so great - the movie elevated something mundane to something feeling wildly entertaining, important, and a better vehicle for delivering its themes than a freaking nuke. Of the three, this is the one I'd get something new out of it every time on rewatch, to much credit of the editing choices. I'd vote for this one for best picture based on how thematically complex/rich it is and ambitious with A+ level craftsmanship. Only thing that bothered me was some of the dialogue seemed a bit silly and unnatural, but never to the point of being totally distracting and taking me out of it.