Not having Glory in the top two makes it hard for me to take your Denzel list seriously. It's number one for me by a long shot, but I wouldn't fault someone for putting it number two behind Training Day. Question, have you never seen The Book of Eli? For me that and Flight are neck-and-neck for number three.
As for your question, Tenet is in a league of its own. It is a dizzying intellectual exercise to follow (as most of Christopher Nolan's movies are), but is so rewarding with its moebius strip of story. I'd rate it above probably 15 out of the last twenty best picture winners. At least.