about the "they" vs "us" thing, i think it's a no-contest.... in all terms of film-making, including acting, hollywood is miles ahead... indian films are unique in their own way but we are far from a stature which warrants comparison with hollywood... they could be making films which are different in nature from the fare dished out here... and that's precisely the point... every other technically superior indian film is touted as having "hollywood standards" when the truth is that we are lagging light years... forget technique, the content? we are not even there in the picture.
imho, robert de niro is one of the finest actors at work in world cinema... yes, like all great actors, he has also repeated himself... i think more than jimmy comway in Goodfellas, travis bickle in Taxi Driver is more prominent in his performances... but versatality is just one hallmark of great actors... for instance, imho, jack nicholson is the greatest of them all, but there's a bit of jack nicholson in all his performances, can't really escape that... and anyway, versatality doesn't come with different get-ups... de niro's performances in films like Raging Bull are benchmarks indeed... there's The King of Comedy, there's The Deerhunter, there's Once Upon A Time In America, there's Cape Fear... he has been amazingly consistent... maybe he's falling in recent years, but that also traces into the dip in the overall standards of films in hollywood... so there.
now, the lal-de niro comparison... their approaches to acting are vastly different, with de niro being more of a methodical performer... but the results are quite similar, imho... they are both intense actors who rarely get carried away by the intensity... almost always under check... they are not "gotcha" actors, who make conscious efforts to rise above the film... they gel into the picture nice and smooth... and more importantly, they don't have the "look-at-me-how-do-you-rate-my-performance?" attitude... an attitude which has eaten into performances of even great performers like marlon brando and al pacino.