I also think we've reached a point where a film's actual reception and true place in the pantheon of pop culture shouldn't be determined for some time after its initial release. Excitement, buzz, communal and personal experience, etc... all of this stuff affects one's perception when a movie is new. And while those scores and ratings (even among critics) are honest representations... they're just snapshots of that point in time. I'd bet many movies would go down (or up) if revisited in that way a year or more later. Just look at AVATAR. The #1 movie of all time (and had people arguing, much to my amusement, that it was destined to be a cultural touchstone ala Star Wars) and now hardly anyone gives a damn about it. Ask most SW fans what they thought of TPM while walking out of the theater in May 1999 and you'd get very different answers than you do now. And I think that's even the case with TDKR, though not nearly as drastic. I'd bet good money that a fair percentage of those who loved it last Summer have come down a tad since then. But I'm just basing that on anecdotal discussions.
But, again, what does it matter? Our opinions are our opinions, whether we're in the majority or minority. Being in one or the other isn't really validation of anything. And things change. Even those opinions.