Actually, Alkanfel, Spider-Man is at least a class 10 - meaning he can deadlift ten tons; while Gregole is stated to have the strength of fifteen men, Spider-Man is at least as strong as fifty.
Quite apart from that, I think the Guyver universe and the Marvel one are fundamentally incompatible. Here's why:
In the Marvel universe, about a million years ago, Earth was visited by the Celestials, gigantic armored space-gods. They took humanitys ancestors - probably Homo Heidelbergensis - and manipulated their genes, creating three species: the immortal, god-like Eternals, the ever-changing, demonic-looking Deviants, and the humans, who seemed unchanged - except they now had the potential to develop incredible super-powers. It is this hidden potential that caused the surge in superheroes and -villains. The Fantastic Four got their powers through exposure to cosmic rays, the X-men and other mutants develop theirs naturally, and Captain America, Luke Cage and Wonder Man were empowered as the result of experimentation, but the ultimate cause is always the Celestials' meddling. They are the Creators, and their efforts contravene anything the Advents might have done.
Where Zoa-forming is an arduous and dangerous process, empowering a human in the Marvel universe, on the other hand, can be as simple as electrocution, being bitten by a radioactive spider or simply hitting puberty; the process is virtually instantaneous and practically every subject survives.
And some of the empowered individuals possess enormous power, on a par with that of a Zoalord, like Magneto, Graviton, Electro (on a good day), the Human Torch, Radioactive Man, Apocalypse or Iceman. Some even surpass Archanfel, like Molecule Man, the Scarlet Witch or the Sentry.
In an all-out war between the two Earths, Chronos is outclassed. And were Chronos to try to Zoaform people from the Marvel universe, they could be facing any number of nasty surprises.