Hah! I do like the Saim-Hann bit.
"Humans, evacuate the planet if you know what's good for you!"
"Jog on, filthy xenos! We like it right here, so how about you eat some artillery?"
"You'll wish you would've done the jogging yourselves... Riders, take out all their spaceports. Cousins, you take it from there!"
Eldar truths, and all that...