I know this may be stupid but...
Flicks; we all have one that we absolutely love, and for me, although there are many great classic movies, which i love and will always remember, i would have to say this is possibly my favourite movie.
I realize that this isn't a movie masterpiece, nor will it be a timeless classic, but i enjoyed it more than any other film i can remember; perhaps it just fits my style! I suppose you could say its my guilty pleasure. If i was to say films i prefer it would only be picked at the post by Goodfellas + Dead man's Shoes.
So i suppose this comes down to what i often have to contend with when i rate a film, do i rate with a critical eye, or through enjoyment factor, because for the latter this would be a 10 * film!