Too many movies to choose from, but after taking a look at the dvd collection here's what I came up with.
Action/Adventure - Blade trilogy, Indiana Jones trilogy, Bad Boys (Just the first one), and the Terminator trilogy (more 1&2 than 3).
Comedy - Rush Hour 1&2, Ace Ventura 1&2, Big Momma's House, Friday (The first one).
Horror/Thriller - The Thing, Aliens Quadrilogy, The first Predator, The Ring, The Grudge.
Children Classics - Lion King, Watership Down, Transformers (movie sux, but it's high on nostalgia), The 2 Ewok movies (cheap attempt to cash in on Star Wars mania, but I loved them as a kid nonetheless).
Drama - Boyz In The Hood, Remember The Titans, Higher Learning, Blood In Blood Out (A must see), Menace II Society.
There's too many to name, but those ones stand out for me in some way or another. And after looking through my dvd collection again I seem to be saying " how could I leave that out" to every second movie. lol. But that'll do.