You can make the argument Stieb was the better pitcher , he had the highest WAR rating for ALL pitchers during the 80's, higher than guys like Nolan Ryan, Jack Morris, and Bert Blyleven. 25% of his career starts were complete games. Different era's entirely but it's closer than one thinks. The guy was an asshole while Halladay was a quiet and likeable teammate, and he was the prototypical workhorse, so Doc tends to get more press.
Halladay signed a one day contract to retire as a Jay, so I think it's obvious they Jays will honour him in the next couple years.
I was at one of his gems at Skydome, complete game 3 hit shutout against the yanks, I think he threw 94 pitches if recall correctly. The game was over in 2 hours. LOL
He should get Hall consideration but when guys like Morris can't get in with longer careers and better accumulative stats , it's going to be tough.