Favorties ? Not sure , there are some movies I can watch many times (most Month Python, Rat Race, Galaxy Quest, Shawn of the Dead , yes mostly comedies
) and tons of movies I genuinely like ( alot of them mentioned here - stop it I mean it ...anybody want a peanut ? ) so for me I'll offer ....
The movies I could not stop talking about the first time I saw them or left me with a really good feeling. (In chronological order I believe)
The Sting (never saw that ending comming when I first saw it as a kid ...)
Star Wars (Original - but the first three were all good)
Rocky (1st - the last one well
)
Matrix (Original - but I liked them all just kinda knew what to expect)
LOTR (like all of them but the 1st was soo good and then we had to wait ....)
Avitar (not a huge 3D fan however saw this in an IMAX 3D was very impressed)