I have a great many favorite silent films.
Chaplin, of course, stands tallest for me: THE CIRCUS and CITY LIGHTS among my all-time favorite movies by anyone.
Keaton is right up there with SHERLOCK, JR. and THE GENERAL and OUR HOSPITALITY. (And I've never seen THREE AGES which I will get to one of these days.)
Love the silent BEN-HUR, in many ways more enjoyable than the 1959 remake and MUCH shorter.
WINGS, SUNRISE, THE EAGLE, SHOW PEOPLE, NOSFERATU, THE CAT AND THE CANARY, POTEMKIN.
I could go on and on.