My two favorites have to be Dear Prudence and Hello Goodbye.
 
The former's is very colorful and peaceful, and I liked it immediately after I saw the tiny portion of it in the third trailer. The latter's was very joyful, almost to a humorous degree. Something about the part where the Fab Four are hypnotically waving and smiling at the screen made my laugh.

Dear Prudence is definitely one of mine; the sun burst in the beginning really made me go "Whoa". Also, Sgt. Pepper/With A Little Help... is great too, mainly because it is too different songs with two cool settings. The shown lyrics were a nice touch too. Within Without You/Tomorrow Never Knows almost made my head explode too...

Definitely Sgt. Pepper's Lonely Hearts Club Band, when the giant horns come out of nowhere.

i like octopus garden for being so out there but i also like helter skelter and the encore for being simple.

Definitely Sgt Peppers, I love that orangely glow.

Within You Without You, Hello Goodbye, Sgt Peppers, Octopus Garden, and Yellow Submarine are my favorites.  I love how inspired by the cartoon Yellow Submarine was, with the part where they are all looking out the windows of the sub waving at the camera.  I was kind of disappointed with the one for Lucy In The Sky It kinda seemed like they ignored all the cool stuff in the song and just made a generic dreamscape, i was expecting to see newspaper taxis, etc, etc.

Yellow submarine

" I was kind of disappointed with the one for Lucy In The Sky It kinda seemed like they ignored all the cool stuff in the song and just made a generic dreamscape, i was expecting to see newspaper taxis, etc, etc. "

Within You Without You / Tomorrow Never Knows . . . sent me on a 3 minute acid trip

Here Comes the Sun, Hello Goodbye, and Sgt. Pepper are my favorites.

come together is exactly what i thought it would be.

The beginning of Here Comes the Sun is fantastic. The first time he sings those words rays of sunlight starts to come in through the window. Very subtle but very well done.

I've come to taken a liking to the Something dreamscape now...I love the orangey tone.

anyone notice that Paul always seems to know where the camera is when he sings.

I really like I am the Walrus, it's probably my favorite.

Yellow Submarine. I wore our VHS of that movie out as a child, so seeing them in their cartoon clothes really tugged on my nostalgic heartstrings. Kinda wished Jeremy or the Blue Meanies would make an appearance in the dreamscape, though.

Something, Yellow Submarine, Dear Prudence and Here Comes The Sun are my most favorite.