Not necessarily my favourites, but 10 that spring to mind:

Blade Runner
Aliens
Pulp Fiction
The Big Lebowski
Fargo
Drive
Little Miss Sunshine
The Godfather (1&2)
Highlander
Toy Story

2001: A Space Odyssey
Apocalypse Now
Psycho
Raging Bull
Mulholland Drive
Once Upon A Time In The West
Modern Times
The Apartment
WALL-E
Kes

Not really a top 10 movie list guy. I'll give it a try though.

In no order.

Predator
Total Recall (Arnie)
Limitless
Chronicle
Swimming with Sharks
Glengarry Glen Ross

I'm struggling now so I'll I Robot, but that was mainly for the futuristic CGI cities rather than the film.

Can't really think of any I like enough to complete the ten, if I was forced to I'll have to throw in some more Arnie films.

Can't believe you've left out Rita, sue and bob too mate

Don't you stick your oar in, or i'll fu*king flatten yeh, you bast*rd


Lost in London didn't make my list either

Jesus dicky I'd forgot about lost in London

I hate once upon a time in the west. As a big fan of Sergio Leone's euro westerns I was looking forward to seeing this for the first time in 1990,hadn't even heard of it before then.Wished I never bothered.Horrible, horrible picture,the sight of it,the sound of it,everything.

Strange how tastes vary, I love this film, some great lines.
"Wheres my horse?"
"We seem to be shy of one horse."
"No, you brought two too many."

off the top of my head

Battle of Algiers
Gladiator
Casablanca
Delicatessen
Duck soup
Crouching Tiger
Betty Blue
Duck you sucker
Braveheart
Airplane
Last of the Mohicans
Millers crossing

They are all films that i just watch and watch whenever they are on TV

LA Confidential
The Usual Suspects
The Insider
Cidade De Deus
No Country For Old Men
12 Angry Men
Requiem For A Dream
Anchorman
Taxi Driver
The Godfather Part II

First ten without giving it any serious thought