1) I agree with Kie99 on the statement, that the Colossus doesn't need to engage in Realspace... tho what for build a FRIGGIN 6KM SHIP if a bunch of bombers can deal with Lucifer anyway? (with Helioses even moar effectively
2) on "640 Lucifers >>>>> 80 Sathanas Juggernauts"(sp?) erm, that's ridiculous. you can't judge ships just because of their sheer effectiveness in BATTLE. It's kinda obvious that Lucifer is for one thing, and Sathanas for another.
Lucifer -> eradicating planets,
command ship*, intimidation maybe (*supported by the Shivans going nuts after it being destroyed)
Sathanas -> making supernovas, maybe some other kinds of subspace manipulation, blockade breaker?

with these friggin beams at the front lol
that's for one thing
And another "Why other ships dun have shields lol?"
Well, here is a mystery really, tho' we can explain it somehow (*WARNING* *HIVE SHIVANZ ENSUING*) If we agree (for the sake of sense of this theory right here) that Shivans are some kind of hive mind (so one brain, countless minions, maybe couple of brains lol), then it's obvious that fighters/bombers get shields, because of their uselessness without them (boom, no wing), and Lucifer, as the Command Ship prolly has some kind of Shivan brain onboard, so it has to be shielded for the sake of war. And if you ask me why Ravana, Demon, Cain etc don't have shields: cause
S have friggin lots of'em. And I think that shields on Sathanas would be overkill. Only races we know to survive clash with Shivans is GTVA, and GTVA has a LOT of problems dealing with only one... and they have manymanymany Sathanas Juggernauts.
End. I hope you can understand me engrish.