The tracking shot from Tenebre

The killer/mirror reveal scene in Deep Red.

GIALLO - Car chase
This was an ok scene (i like how Brody was angry against the driver and Seigner!) but the best parts of GIALLO are in my opinion the two abductions scenes at the beginning, Brody's two flash back scenes and the ending.
DRACULA - Asia in the forest
The opening scene in the forest?
It wasn't Asia but Miriam Giovanelli ("Tanja")pretty lit and shot scene, i think too.
Other nice Dracula scenes are Mina's dream scene and the slaying of the "cowards".

THE BIRD WITH THE CRYSTAL PLUMAGE - The murder watched from the street
CAT'O'NINE TAILS - The twist ending
FOUR FLIES ON GREY VELVET - The ending reveal
DEEP RED - The physic murdered through the window
SUSPIRIA - The end scenes in the basement of the ballet school
INFERNO - The opening scene - underwater exploration
TENEBRE - The famous crane shot
PHENOMENA - The opening waterfall murder
OPERA - The keyhole murder
TRAUMA - The decapitation of Brad Douriff
THE STENDHAL SYNDROME - Kissing the fish!
PHANTOM OF THE OPERA - Asia singing opera
SLEEPLESS - The opening train scene
THE CARD PLAYER - The ending train scene
DO YOU LIKE HITCHCOCK? - The window murder
JENIFER - Ending
PELTS - Ending
MOTHER OF TEARS - Ending witches orgy scene
GIALLO - Car chase
DRACULA - Asia in the forest

THE BIRD WITH THE CRYSTAL PLUMAGE - The POV shot of the killer slashing the victim with the straight razor in the elevator.
CAT'O'NINE TAILS - The man being hit by the train.
FOUR FLIES ON GREY VELVET - The ending's slow motion car crash/decapitation set to that beautiful music.
THE FIVE DAYS OF MILAN - Haven't seen it.
DEEP RED - The tracking shot of the child's toys and the different weapons on display.
SUSPIRIA - The shot of the dance school coming into view from Suzy's POV in the cab.
INFERNO - The shot of the exterior of the apartment building at night when the street lamp is lit up a hot pink and slowly darkens to a deep red. I just find the colors striking.
TENEBRE - The camera crawl over the exterior of the lesbians' house.
PHENOMENA - Jennifer saying "I love you all" and summoning the insects to her school while the other students watch.
OPERA - The shot of Betty tied up in the display case with her mouth taped shut with the pins under her eyes while waiting for her seamstress friend to be killed with the scissors.
THE BLACK CAT - Can't remember it well enough.
TRAUMA - The shot of the killer standing in the rain with the two severed heads (revealed later to be an illusion).
THE STENDHAL SYNDROME - Anna walking into the painting on the wall.
PHANTOM OF THE OPERA - Don't remember it well.
SLEEPLESS - The tracking shot across the floor that ends in the ballerina's decapitation.
THE CARD PLAYER - Anna pursuing the killer through a back yard while the wind is blowing the tree limbs. I just remember it being atmospheric.
DO YOU LIKE HITCHCOCK? - Don't remember it well enough.
JENIFER - Same as above.
PELTS - The stripper in the elevator, I believe. My memory is a bit fuzzy.
MOTHER OF TEARS - Giselle's murder in the museum.
GIALLO - Don't remember it well.
DRACULA - The shot of the first girl being bitten in the woods after her tryst in the barn.

Hmmmmm
Well Suspiria and Deep Red are the only movies I have a good memory of. And for Suspiria I'm gonna go cliche and say that first murder scene is my favorite from that film and in Deep Red probably the woman getting drowned in boiling water. I hardly remember anything for Bird With The Crystal Plumage, except I think a dude eats dog meat against his knowledge. I don't remember too much from Tenebre except for a shot of somebody getting garroted and the thunder left blue light on his or her face. That was visually striking enough to leave an impression. Phenomena had the scene where Jennifer Connoly was fell into the corpse water. That actually made me squirm. And with Opera I dunno I remember the thing with the needles in the eyes but that's from the poster as well.
Damn I need to see more Argento
100 Greatest Action Movies -
http://www.imdb.com/list/ls000708268/