I'm gonna be in the minority here; I think Leo would be good for the part. Although I have nothing against Scott Caan, since I've never seen him in a movie yet, and I like Leo, but can't say I'm a huge fan, I think he could do it. I think he's underated as an actor. From scenes I've seen of Gangs of NY, he seemed quite credible to me. But then, that's just my opinion!!
TIS
"Mankind must put an end to war before war puts an end to mankind. War will exist until that distant day when the conscientious objector enjoys the same reputation and prestige that the warrior does today." JFK
I think Leo would be good for the part. Although I have nothing against Scott Caan, since I've never seen him in a movie yet, and I like Leo, but can't say I'm a huge fan, I think he could do it. I think he's underated as an actor. From scenes I've seen of Gangs of NY, he seemed quite credible to me. But then, that's just my opinion!! 
