Well, I don't know too much about either (never played crysis and on page 120 of cryptum). I just wanted to know which would be superior. You could give me a general idea of each of their capabilities if you don't mind?

The Nanosuit can tank gauss rounds, gives one superhuman strength and speed, has a variety of visual modes from infrared and ultraviolet, is immune to most forms of scanning, can turn invisible on a whim, and is [i]really[/i] damn good at keeping you alive. Alcatraz, the protagonist of Crysis 2, had half his organs blown out and was basically using the suit as a wheelchair/iron lung the whole game, and even half-dead he was still pretty much on par with/superior to a SPARTAN-II. The suit eventually started growing into his wounds and harvesting his organs though, so that's sort of a drawback. It has a finite source of power but can use damn near anything to recharge in seconds, including oxygen. A Forerunner suit is pretty much a WMD to itself though, and shits all over the Nanosuit.