You can definitely compare movies even if they are from different directors, its done all the time.
Especially if it is a sequel or prequel to a movie. It's just saying, well what did this director do different then the one before him. Completely normal.
You'd better believe i'm gonna rip into Alien Versus Predator when that piece of shit comes out.
Of course, I might be wrong, it might be good. Jimmy was wrong in his initial feelings on Kill Bill v.1. After he actually saw it, he said he liked it.
I still have yet to see that movie. Damnation.