But seriously though, what's the criteria here? If it's being in a lot of great movies, I could make a case for Sam Jackson or Morgan FreemanIf it's best performances, I have a lot of people ahead of Leo just from his generation of actors let alone all time.
Sam jackson has also been in a lot of terrible ones. Leo hasn't. He's chooses his roles carefully. I dont think he's ever been in a bad movie. Performance wise, you're right tho.... I put lots of actors over Leo. But no one can deny that his movie catalogue is one of the best.
If it's best performances, I have a lot of people ahead of Leo just from his generation of actors let alone all time.

But to respond to your points seriously, what makes you think the A1 directors who automatically default to casting Leo in leading roles are even thinking of nikkas like Sam Jack?
Denzel can out act Leo any day of the week and you know Scorcese ain't out here blowing up his cell. I refrain from using the
smilie because it's the biggest copout on this forum, but it definitely applies here. Leo has one of the most undeniable filmographies, no doubt. Quality of performance-wise is a whole other discussion. If that makes me a hater, I embrace the smoke
I doubt sam jackson or denzel would have been good casting choices for calvin candie, jordan belfort, billy costigan, jack, howard hughes etc.