Glassing is the best

Necromorphs would shrek the Covies so fast, it wouldn't be fair. It would be a slaughter.

The Covenant would have a hard won victory if they simply reject Markers as blasphemous technology. That would slow down the Necromorphs immensely, as the production of Red Markers is necessary to initiate a Convergence Event. I'd also suspect Slipspace will be a great asset to them, as it can help prevent mind control by simply removing the ship and crew from normal space. [spoiler]Necromorphs can very easily gain the upper hand on ground fights. The Covenant has space on their side, though.[/spoiler]

What about necromorphs vs the forerunners?

To this date actually, the Necromorphs haven't been stopped. There was a race that was able to slow their advance across the galaxy, but they only delayed them. They didn't even manage to wipe them out of the galaxy int he first place. A lot of Dead Space's weaponry is on par with Covenant technology, as in both are plasma based in some instances and Humanity has a solid understanding of gravitational technology, these two things both of which are what give the Covenant such a huge edge. And as you can see, that hasn't worked out very good so far for the majority of Humanity in the DS series. The Covenant would get utterly ass stomped. The Necromorphs greatest assets in terms of physical strength is the species they control. They use all physical assets to their utmost potential and even do more than that by fusing bodies together. Imagine the structures and forms they would make of infected Elites or Brutes, and the strength they'd have. We're talking two species that are both incredibly strong when compared to Humans, and extremely resilient. Every Necromorph we've ever seen was Human based for the most part, and they were bad enough as it is. The Covenant would get ROFL STOMPED. And that's not even accounting for the Markers.

Necromorphs destroy covenant, flood destroys Necromorphs

I'm sure that the Necromorphs aren't something a glassed planet can't fix. Not positive of this, though.

If precursors would roflstomp everything, they wouldn't be dead. Necromorphs ftw

I wasn't paying attention, but I have to say necrophilia is just wrong. Wort, wort.

How the hell is the Covenant winning the poll? [spoiler]*sigh* Halo fanboys[/spoiler]

I say the covenant. But to be fair throw in a brethren moon or something so it wouldn't just be covenant orbital bombardment.

from what i've heard necromorphs can do quite a bit of damage.

I think the necromorphs Did you see what the flood done to the Covenant i'm a Covenant fan but its imposible for they to handle with those monsters They ripped them of and turn them into a new Monster :(

Stahp