Well, simply put, the purpose of this thread is to talk about who would win if the Galactic Empire fought both the Borg AND Species 8472. They don't necessarily have to be allies, and considering their history, I don't think they'd really work together anyway; they just have to be fighting the Empire at the same time. I put these two together to somewhat nullify the drastic differences in firepower, shields, numbers, and FTL between the STverse and the SWverse.
Let's say the Empire invades the ST. Before going after the smaller threats like the Romulans, the Federation, the Klingons or the Dominion, I think they'd first turn their attention to the big powers that can pack a punch. I read somewhere that the Borg more or less have 150,000 cubes and that Species 8472 have 70,000 bioships and didn't lose a single one in the Borg/Species 8472 war. I also read somewhere that the Empire has hundreds of millions of Star Destroyers... or was that fleets?? Anyway, that's a MAJOR difference compared to a few couple hundred thousand that both the Borg and Species 8472 both wield COMBINED. Then there is their obvious FTL advantage. But the Borg can use transwarp conduits to go places theoretically faster than any warp capable starship, even if it's not as fast as SW tech, and Species 8472 can open quantum singularities anywhere in the galaxy, so they should be on par with Imperial speed, if slower, but at least they're not as slow as the Federation.
![Wink ;)](./images/smilies/icon_wink.gif)
But I'm just rehashing things that have already been said, so let get straight to the point: The only thing I see working in favor of the Borg/Species 8472 is that their bioships can destroy a planet within seconds, (we don't know how many of these types of ships they have; they could have hundreds, thousands that can destroy planets) and that the Borg can adapt. Yeah, I know, I subscribe to the "frequencies" theory too, but let's just say that the Borg study Imperial weapons and find a way to adapt to it, if not permanently then only for a short time.
Discuss.
(P.S.: Any and all comments given here will greatly help me in my own ST/SW crossover so please don't keep me waiting.)