For an overall favorite Rush song, though, I think I'll have to go back to Signals, and "The Body Electric":
One humanoid escapee,
One android on the run,
Seeking freedom beneath
The lonely desert sun,
Trying to change its program,
Trying to change the mode, crack the code,
Images conflicting into data overload
1001001
SOS
1001001
In distress
100100...
Memory banks unloading,
Bytes breaking to bits,
Unit One's in trouble
And it's scared out of its wits
Guidance systems break down,
A struggle to exist, to resist,
A pulse of dying power in a clenching plastic fist
1001001
SOS
1001001
In distress
100100...
It replays each of the days,
A hundred years of routines,
Bows its head and prays
To the Mother of All Machines,
All machines...
_________________
Sodium is a metal that reacts explosively when exposed to water. Chlorine is a gas that'll kill you dead in moments. Together they make my fries taste good.