Personally I feel it's Halladay. I didn't want to be first to reply on my own thread.
Yes, highest WAR as a Jay but it's not just that. It's how he made Jays games exciting for teams that just weren't exciting for his entire career. How he came back from being the worst pitcher in MLB to the best.
And yea, the drug stuff. Well, I'm more forgiving. He did dumb things on painkillers but let's not forget he crippled himself for us, the fans. Only Halladay had the presence of mind to pitch through the kind of pain he suffered and still be elite. For me, it just adds to the narrative. Hopefully retired players get better help because of his legacy.
The hat thing idk I think it's a nothing burger. He was inducted posthumously so we'll never know how much family played a role vs his own wishes.