There is something particularly iconic about Rear Window I think, there are so many circumstances or views or whatever that can suddenly make someone say "it's like Rear Window".
When I think of Hitchcock I think of lots of good, even great films, I think of technical innovation, I think of the Freudian subconscious stuff that he put in there very explicitly and for which he was famed. I guess cos lots of films (any film) can be written about from that angle or giving a Freudian take - but that's the critic giving it their interpretation. But I suppose Hitchcock was someone who was recognised as being amongst the very first to deliberately and explicitly (sometimes too explicitly for my liking) put than in as part of the story, to really acknowledge that as a major part of the story (this is just the impression I get - please correct me if I'm wrong, but I can't immediately think of many huge classic films of the era that did the same).
So, yeah, loads of really good films, many bordering on great; consistently making loads of really eight or nine out of ten level films for years and years. But... but but but... in my opinion, I'm not sure he did that many fucking beyond genius 10 out of 10s. Right now this is how I feel at least. Off the top of my head I can't really think of any that really go to that extra level. Maybe I'm forgetting some or maybe I'd give a different opinion tomorrow, but my feeling is that despite everything, he never reached that absolutely magical marriage of technique and atmosphere and emotion that is the difference between a fantastic film and... I dunno, something else, the ineffable untouchable... er, thing.
One tenuous thing in favour of that argument would be the fact that he never won the best director oscar. It sort of seems that every year his film would come out and it would be good and everyone would know it was good and it was there or thereabouts and yet there never came along one that made them go "This is his masterpiece, let's give him an oscar - the oscar". He might have been better than all the directors making at the same time over a twenty year period or whatever, but every year one of those mainly lesser directors tended to rip their guts out in making a better film than his offering. Two flaws in that argument - one is that the oscars are obviously bollocks so fuck 'em. And the second is that maybe he did win a best director one at some point anyway.