Yes let's just keep blasting people because of what they like. If someone thinks that Ghostbusters is the best movie they ever saw, then it's not up to you to doubt that; they like the movie because they like the movie. They don't need someone to tell them that they aren't supposed to like the movie because it's the latest craze to hate on things that are popular to make yourself look cool.
the thing is, Avatar being "the best I ever saw" makes sense for someone that sticks within the same genre. This comment speaks more towards someone's personal experience, their taste--and how limited it might be--rather than as a considered judgment on the quality of something in comparison to a very wide range of other "somethings."
I question the claim of a self-described movie buff--or rather, seek clarification as to one's exposure--b/c someone who ventures outside of the US industry, or spends time watching plenty of things outside of a particular genre, would never claim that Avatar is so great.
It's perfectly fine for a sci-fi/action buff, with a very limited frame of reference to these type of movies, to make such a claim. This makes sense.
It's perfectly normal that people go to the theater and only see action movies, or that's all they rent. To them, that's what a movie is. Often, such fans wouldn't understand...maybe even be aware that film does very, very different things. The world is much bigger than those narrow goggles. You can believe that Transformers 2 is the greatest film of all time as long as you want--but the reality is that it is the greatest film that
you have seen of all time, simply because you watch the same 3 films over and over, and never venture out of your comfort zone....(also, one would have to like shitty, shitty movies to be able to tolerate Transformers. ...just saying.)
It's all about one's frame of reference. I think many so-called buffs probably aren't aware of how limited their own exposure is in this medium, simply because they limit themselves with such narrow taste. Again, I'm not saying there's anything wrong with that, I just "get it." I'm surprised so few do. :\