What Are You're Top 3 Sci-Fi Films?

I attend a science fiction marathon every year that prides itself on showing movies from every decade. So I won't be able to limit myself to three films. But here's three favorites per decade:

Them! (1954)
Forbidden Planet (1956)
The Day the Earth Stood Still (1951)

Planet of the Apes (1968)
Quatermass and the Pit (1967) AKA Five Million Years to Earth
Fantastic Voyage (1966)

Silent Running (1972)
Wizards (1977)
The Andromeda Strain (1971)

Escape from New York (1981)
The Thing (1982)
Star Trek II: The Wrath of Khan (1982)

Terminator 2: Judgment Day (1991)
Split Second (1992)
Total Recall (1990)

The Prestige (2006)
Blade II (2002)
Equilibrium (2002)

Interstellar (2014)
Terminator 2: Judgment Day (1991)
The Fountain (2006)

I'm a certified sci-fi expert. My second specialty, just beneath Westerns, just above war films, so my word is the law of the jungle.
One will be able to tell from my list that I differ from most others on IMDB in that I don't give much mind to special effects, and that I go more for "credible characters in incredible circumstances".  

That's natural for baby boomers, because most of us only saw movies on antenna sets, with lots of fuzz, so the story and characters became more important to us than people born decades later. If such people also like story and characters as much as I, I commend them for being able to withstand peer pressure.


And that makes it tough to limit to three. The first always remains the same. The next two vary at times. Today, its:

1. THEM!
2. First Spaceship on Venus
3. Unknown World 1951

Alien
Blade Runner
The Thing
Superman / Superman II
T2
1984
Interstellar