You guys are raging idiots.
Because PROTOTYPE (And yes, I have it!) is mindless fun and gore, you resort to acting 'cool' by saying it is the best. In fact, Halo is not an over-milked franchise. It is fun, and it is a more complete game than PROTOTYPE. Even so, if you like having only three different attack animations for every morph, and twelve or so special abilities in all. Go ahead, waste your money.
And to the person that said they could finish it in one week. You are a sad person. It is a two day game at max. PROTOTYPE lacks a storyline and is a go-there-kill-this type of vibe.
In a sense that Halo has it's goods and bads as well as being, to some people, 'shitty'. I rate it as the better game because you can get more fun out of it. As well as more story.
Now that I am done with my argument, go ahead and debate this properly.