Well from what I could find on these boards no-one has done a similar thread to this, and if they have please point me in the right direction. But from what I could tell everyone was keen to name more than 5 or 10 films as there favourites so I thought this would make it more interesting.

First to contradict the thread title I will start with my favourite 30...

1. The Big Lebowski
2. Me and You and Everyone We Know
3. The Graduate
4. Dogville
5. Paths Of Glory
6. Serenity
7. Kiss Kiss Bang Bang
8. Sympathy For Mr. Vengeance
9. Pitch Black
10. The General
11. The Way of The Gun
12. Pulp Fiction
13. Fight Club
14. Down By Law
15. Reservoir Dogs
16. The Dark Knight
17. American Psycho
18. Fargo
19. O Brother, Where Art Thou
20. Casablanca
21. Snatch.
22. The Triplets of Belleville
23. JSA
24. Dumb and Dumber
25. A Serious Man
26. Adaptation
27. The Host
28. The Man Who Wasn't There
29. The Proposition
30. Dr. Strangelove

And now what I consider the 'best' 30 films ever made, these were all rated on story, writing, directing, acting and cinemaography, and averaged to give the following scores and positions...

1. Paths Of Glory (1957, Stanley Kubrick) - 9.46
2. Casablanca (1942, Michael Curtiz) - 9.34
3. Gone With The Wind (1939, Victor Fleming) - 9.32
4. Dogville (2004, Lars von Trier) - 9.32
5. Sympathy For Mr. Vengeance (2002, Chan-Wook Park) - 9.32
6. O Brother Where Art Thou (2000, Coen Brothers) - 9.32
7. Pulp Fiction (1994, Quentin Tarantino) - 9.24
8. The Big Lebowski (1998, Coen Brothers) - 9.24
9. Fight Club (1999, David Fincher) - 9.22
10. The General (1926, Buster Keaton & Clyde Bruckman) - 9.20
11. Oldboy (2003, Chan-Wook Park) - 9.20
12. The Good, The Bad And The Ugly (1966, Sergio Leone) - 9.20
13. Fargo (1996, Coen Brothers) - 9.16
14. Seven Samurai (1954, Akira Kurosawa) - 9.12
15. No Country For Old Men (2008, Coen Brothers) - 9.12
16. JSA (2000, Chan-Wook Park) - 9.08
17. Who's Afraid Of Virginia Woolf? (1966, Mike Nichols) - 9.08
18. In The Mood For Love (2000, Kar Wai Wong) - 9.06
19. Yôjinbô (1961, Akira Kurosawa) - 9.06
20. Reservoir Dogs (1992, Quentin Tarnatino) - 9.02
21. Unforgiven (1992, Clint Eastwood) - 9.00
22. Down By Law (1986, Jim Jarmusch) - 8.98
23. The Man Who Wasn't There (2001, Coen Brothers) - 8.96
24. Momento (2000, Christopher Nolan) - 8.96
25. Dr Strangelove (1964, Stanley Kubrick) - 8.96
26. Monty Python And The Holy Grail (1975, Terry Gilliam & Terry Jones) - 8.96
27. Ran (1985, Akira Kurosawa) - 8.96
28. Grave Of The Fireflies (1988, Isao Takahata) - 8.94
29. The Way Of The Gun (2000, Christopher McQuarrie) - 8.94
30. The Seventh Seal (1957, Ingmar Bergman) - 8.94

I've decided to play nice.......here's my 30 favs:

1. Braveheart
2. Grumpy Old Men
3. The Good, the Bad & the Ugly
4. Unforgiven
5. Goodfellas
6. One Flew Over the Cuckoo’s Nest
7. The Shawshank Redmeption
8. Stand By Me
9. The Seventh Seal
10. Platoon
11. It Happened One Night
12. Raging Bull
13. Laura
14. Spartacus
15. Saving Private Ryan
16. Gladiator
17. Double Indemnity
18. Casablanca
19. Deliverance
20. Easy Rider
21. Judgment at Nuremberg
22. To Kill a Mockingbird
23. The Best Years of Our Lives
24. The Godfather Part II
25. The Grapes of Wrath
26. The Man Who Shot Liberty Valance
27. The Ox-bow Incident
28. Stagecoach
29. Old Yeller
30. The Outlaw Josey Wales

This is copied from a top 100 I made awhile ago and probably varies a little based on my mood. As far as a list for "best made" films....the list would probably be exactly the same except take Grumpy Old Men out at #2, move everybody up and put Pulp Fiction at #30

__________________

lord of the rings trillogy
apollo 13
godfather trillogy
schindlers list
lawrence of arabia

gandhi
the pianist
spartacus
saving private ryan
forrest gump

castaway
philidelphia
contact
scarface
avatar

the abyss
a bridge to far
the tallented mr ripley
dragon (the bruce lee story)
rocky 1,2,3.

12 monkeys
goodfellas
donnie brasco
carlitos way
snatch

silverado
spy game
bourne trillogy
gladiator
braveheart

might not be much to anybody else but i like em a lot, cant pick what order to put them in so it is a random top 30.

Okay, folks: Here are my all time favorite movies:
West Side Story (the very tops for me regarding films)


The rest are also favorites of mine, in no particular order:

Lawrence of Arabia
Dr. Zhivago
Georgy Girl
Midnight Cowboy
Thelma and Louise
Seventh Seal

Alexander Nevsky
Easy Rider
Sound of Music
The Graduate
Little Big Man
Klute

The Birds
North by Northwest
French Connection
Dirty Harry (the first one)
The Good, The Bad and The Ugly
Gran Torino

Southie
Monument Avenue
Good Will Hunting
Mystic River
Milk
Missing

Hearts and Minds
Winter's Bone
Billy the Kid
Frozen River
Jaws
Grizzly Man

Sunday, Bloody Sunday
Seabiscuit
Wild Parrots of Telegraph Hill
Goodfellas
The Departed
Fantasia (the original)

Fantasia 2000
Pinocchio
Snow White and the Seven Dwarfs
Schindler's List
Munich
Zodiac

Serpico
Dog Day Afternoon
King of the Gypsies
Warriors
Full Metal Jacket
The Great Dictator

Modern Times
Gold Rush

I know I wrote down a great many more than thirty favorites, but I'm in one of my rambling moods.