Your favorite action scene.

[Orcbert]

[Deleted]

The Raid - The main guy and his brother against Mad Dog
The Adventures of Tintin - Tintin chasing the bird through town
The Dark Knight - Batman fights both SWAT and the Jokers men at the building under construction
Transformers 2 - Forrest fight, Optimus vs Megatron and others
Meals on Wheels - Jackie Chan vs Benny the Jet
Saving Private Ryan - opening scene, beach landing

Can name 100 more but those are to start with

[Tradewind]

I guess I should add another

The entire last 30 minutes of Avatar pretty much.

[Deleted]

Matrix: Reloaded at the Chateau.

Fearless also had some amazing fights.

Edit - Band of Brothers, Normandy drop (D-Day from the air), the episode where they get shelled to shit in the forrest is also quite awesome.

[Stormcall]

Some favorites:

The Wild Bunch-Finale(4 dudes take on an entire Mexican revolutionary army)
A Better Tomorrow 2-Finale(3 dudes against a massive gathering of Triad thugs)
Hard Boiled-Hospital Shootout
The Killer-Church Shootout
The Raid:Redemption hallway weapon fight scene and the meth lab sequence
Fist of Legend-First fight scene with Jet Li against a bunch of assholes from a different dojo
Equilibrium-Not Without Incident
The Man From Nowhere-Knife Fight scene
LotR:FotR-Boromir's Last Stand
LotR:Two Towers-Helm's Deep
The Matrix-Lobby Shootout
The Matrix Reloaded:Chateaux Fight
Fast 5-Safe Dragging Finale Chase
Predator-First Shootout at the Guerrilla Base, Mowing the Jungle
Commando-Island Assault(Arnold vs an entire revolutionary army, using guns, explosives, knives, an axe, saw blades, and more)
Blade 2-Blade Revives(and goes through an army of thugs, culminating with Ron Perlman)
Oldboy-Hallways Hammer Fight(original, have not seen remake)

[Demoncrash]

Some really nice large scale stuff already mentioned. So here's good old 1 on 1..

[Ciddy]

Oh yeah, and this. Never actually saw the movie, just saw this clip on YouTube and thought it was cool.

[worprz]

I love this scene, Jackie Chan's fights are so creative lol.

[Hraklea]

In no particular order:

- The cave fight scene from The Expendables (Jet Li & Jason Statham vs Gary Daniels + Stallone vs Couture)
- The "kickless" from Saat Po Long (Donnie Yen vs Jin Wu)
- The final "war" scene from Gangs of New York

[Halicia]

The Matrix lobby scene.

The season 1 & 2 Finale's of Banshee were pretty decent too, tho not in the same way as a big budget action movie scene.

[The Flavour Cat]

James Cameron can direct action extremely well. The Raid, while not the best film in the world, had well-directed action scenes. I think any action scenes that I enjoy are those that use minimal CGI.