Well yeah, I think Owen definatley has some bankability, Whalberg could if he wins best supporting actor, cause than his peeps who liked him in the Italian Job, and Three Kings, will see him, and the people who have seen his fantastic roles, like Boogie Nights, Huckabees, and Departed, will see him, and people who like going to movies that have credentials like 3 academy award winners, one (whalberg) who just recently won one, starring in TDK in a leading role
Schrieber no bankability, Pheonix probably a tad less than Whalberg but about the same for what it's worth, Norton for sure would have the most banakability out of everyone outside of Damon, and probably just as much as him
But Damon def probably had the most garuntee imo, along with Norton, those two are probably the highest profile's up for the role, I think Owen is every bit as good, if not better, but he isn't quite as popular yet