I don't agree at all with the people who are saying Chaplin is more important and a better film maker while Keaton is
merely (?) funnier or a better gag writer. Could someone actually tell me what they think is more important and better about Chaplin's films?
I actually don't even want to argue about which one is/was more important than the other (if either one was) but I would certainly like to hear why Chaplin is so important for film since I haven't watched or thought about his films nearly as much as I have Keaton's.
As for Keaton's "importance" and the quality of his films, I dunno, he completely mastered acting, directing, writing, choreography, editing, manipulating the camera and using special effects very early on.
The structure of his films is often very brilliant and complex. For example his early, almost Rashomon-esque feature
Three Ages (1923) which shows the same story three different ways (each in different "ages"). Or His fantastic "show-biz" comedy
The Playhouse (1921) which shows a dream or fantasy-play within a play within a film, an idea used by countless others including notables such as W.C. Fields (Never Give a Sucker an Even Break), Powell and Pressburger (The Red Shoes), and Gene Kelly (Singin' in the Rain). The super-brilliant
Sherlock Jr. does all sorts of clever things including having the hero jump into a movie (an idea Woody Allen reversed in Purple Rose of Cairo) where he places people he knows from "real life" into stereotypical movie roles. That movie just plays with the feedback relationship between "reality", fantasy and the movies in a bunch of interesting self-referential and nested ways which seem to be showing up now even more than ever in film and tv. Or for great effects go to the cutaway house in Sherlock Jr. as well.
There are some amazing set-pieces using technology and natural environments such as the storm and riverboat in
Steamboat Bill, Trains in
The General, Ocean liner in
The Navigator. Which isn't to say that Chaplin and others didn't come up with their own creative uses of some of these ideas and themes as well (Chaplin's "caught in the gears" bit in Modern Times, for instance, or the storm in [I think] Tramp, Tramp, Tramp starring Harry Langdon...) but for me nothing I've seen in this vein can top the twisted nightmare house that the newlyweds in Keaton's
One Week accidentally build for themselves and then try to live in.
Highly important too is the fact that Keaton took all of these things, none of which he actually invented himself (trains, boats, architecture, self-referential storytelling, the relationship between art and life, natural disasters...) and transformed them into uniquely iconic cinema imagery using the camera and his own amazing physicality.
While my next point is perhaps a bit more subtle, I don't think we can underestimate Buster Keaton's impact on the peculiar sensibility of modern humor either. Not just the deadpan serious face itself, that everyone has mentioned; more importantly how he approaches these kind of heady, intellectual ideas such as the solipsistic fantasy world in
The Playhouse (somewhat reminiscent of the gag in Being John Malkovich where he enters his own head and sees everyone as himself) in an offhand, jokingly nonsensical manner, and at the same time is completely straight-faced/clueless and humorously self-aware about it. This to me looks like a huge leap in how its influenced our modern notion of humor-through-irony as well as what we see as more modern layered or multi-dimensional acting (where the actor is both playing and commenting on the character they're playing as part of the performance).
I guess if I was forced to say not just who I liked better (and really Keaton is more personally important and fundamental for me and my own imagination than perhaps any other film-maker) but who was better I'd still go with Keaton, but I'm really not trying to even get into that. I'd just like to see from someone who chose Chaplin what they would say are the aspects of his films and ideas that are important and why they like him the best.
I'm not trying to invalidate that choice just saying why I think Keaton's great. It's hard to avoid hyperbole but in this case it's actually warranted.