Hard to narrow it down to just three, as they are a great band with 2 great solid albums. My favs include Ghost In The Machine, Silicon Messiah, Born As A Stranger, The Brave, Reach For The Horizon, The Launch, Stare At The Sun, The Day I Fell To Earth, Kill and Destroy, End Dream, Nothing Will Stop Me, Meant To Be, Land Of The Blind, Stealing Time and Motherfuckers 'R Us!! That is like half of their songs!
I would go with The Day I Fell To Earth, End Dream, Ghost In The Machine, Silicon Messiah, and Reach For The Horizon, but since you forgot The Day I Fell To Earth, I will replace it with Stare At The Sun, or Kill and Destroy....hmm...I can't decide which.....I will go with Kill and Destroy, as Stare At The Sun will get more votes.