T1 is a better film if only because it doesn't have a whiny Eddie Furlong and actually takes itself somewhat seriously. T2 added all the elements of a sequel that I hate: whiny children/annoying characters, stupid and unfunny humor, and virtually the exact same plot slightly tweaked.

2001 is the only film that has ever sent me to sleep, so for that reason alone, I wouldn't have it in the list. I'd definitely have ESB top of the list, and probably something like Back to the Future in 2nd, because I could watch that movie if it was on TV every night... Aliens would be 3rd.

I'd have The Abyss in there somewhere as well.

Yup, even as a pacifist I couldn't help but enjoy the shotgun reloading on bikes, canal chase mayhem plus the super cool T-1000.  But the reduction of a world where the future is both bleak and set just didn't work for me, neither did all the crowd pleasing stuff squeezed in either.  Still, love him or hate him Arnie strolling into the bar at the start is a classic.

But T1 is just better all around, and sticks to its guns with respect to the heavy sense of predetermination and gloom.  The only thing that seems dated about it now is Sarah's huge 80s hairstyle.

Still, could be worse, they could have put T3 in there.

Wait..where's Inception?

Moon was good but it's hard to believe they couldn't find a better SciFi movie than that, especially considering it dragged so badly in the last half.

good list but missing Terminator 1 and Akira

Blade Runner I agree with. It's my favorite movie. I agree with 2001: A space Odyssey though it would bemy number 3.

My top 5 is

5. Gattaca
4. The Matrix
3. 2001: A Space Odyssey
2. Ghost In the Shell
1. Blade Runner

I don't agree with no Ghost in the Shell on the list :P

Star Wars I love Especially V and I. IMO it is not Science Fiction. It is Fantasy in outerspace Like other's have said. It is Lord of the Rings in outer space. It doesn't base any of it's theories on science or theory's of science. And the force is really close to something in fantasy ya know. force = magic.

They don't even try to use the effects time dilation should have on the plot. 

The only thing that I can think of that is science fiction in it. is midi-clorians in Episode 1. Because it explains the force. But everyone hated that. Because they're like the force is the force! no need to explain it. which equals magic and fantasy.

IIMO Avatar deserves to be there as much as Final Fantasy: The Spirits Within... meaning, doesn't deserve.

Where's THX-1138, Logan's Run, Silent Running, and Moonraker?

Most of the games on that list are only well known for their special effects.

Blade Runner is a great movie, but not number one.  Empire Strikes Back baby!!!

Oh, and Terminator is much better than Terminator 2.

Don't get me wrong, I don't hate T2 but it fell into the sequel trap that befell Star Wars VI, I, and II in that it tried to be too crowd-pleasing instead of neatly going about its business and telling a kick-ass story.