I may be in the vast minority, but I thought the original was highly over-rated. It was okay, but they played it off as one of the best pictures ever made. I wasn't buying it then and it seem folks aren't buying the new one at all.
It was big because it was controversial for 2 reasons: First, it had the flashing scene. Second, Stone's character was bisexual and the gay lobby had a fit.
What offended me about the flashing scene was the way it reduced the police interrogators into drooling juveniles.
The movie was vastly overrated, IMO.