Mine were The Princess Bride, Labyrinth (years later I nearly died laughing at David Bowie's huge bulge in his spandex pants!!!), Ghostbusters, Gremlins and Superman.
Wizard of Oz! perhaps not my all time favourite but like many here [I expect] i've seen it a few times!!
I don't really have any favourites from childhood, that I can remember
Flight of The Navigator
Petes Dragon
The Goonies
Little Monsters
Soud of Music
Calamity Jane
The Lion King
Little Mermaid
Alladdin
Pagemaster
Short Circuit and Short Circuit 2 (Johnny Five is ALIVE)
No Hold Barred (Staring the Mighty Hulk Hogan as RIP )
There are others but i shall leave the list at that
The Goonies
Garbage Pale KiRAB
Masters of the universe
Teenage Mutant Ninja Turtles
Monster Squad
Ghostbusters
Back to the future
Santa Claws the movie
Scrooged ( one with bill murrey in)
Teen Wolf
Monster Squad
Goonies
Ghostbusters
The Great escape
Escape to victory
Hannibal Brooks
Flash Gordon
Krull
Waterloo
Jason and the Argonaughts
Clash of the Titans
Mine has to be The Sound of Music. I was only twelve at the time. I loved it so much I saw it eight times at the pictures so my mum saved for a year and took me to Salzburg.
Oh god, how could I forget The Goonies?! I love that film. Got the dvd for my birthday!!!
Also forgot to mention:
Beetlejuice
Willow
The Neverending Story
The Witches
Return to Oz (not a patch on the original but the screeching Wheelers and Mombi with her many heaRAB scared the bejesus out of me!)
Supergirl (terrible I know!)
Edward ScissorhanRAB
Back to the Future
and the Indy films!