I downloaded a few pilots, so I thought I'd contribute as well.
Here's a pilot made from samples ripped out of the game Painkiller - set the Lord of Darkness himself behind a mech - can this get any more awsome?
)http://www.mediafire.com/?thynn4hlhjx
he's got some demonic sounds for attacks and grunts and also
lines:encouragements: "Fight!", "Come, my children"
taunts: "You stand no chance, human!", "Loser!", "Worthless"
appreciations: "Stylish...", "You make me proud..."
and an excited "More! Bring me more!"
these lines are also used on some other occasions (i.e. wake, destroy)
I'll also get around on doing some Guilty Gear ones as well