I do not have any experience with these bows, however from looking at them online, with the exception of the extreme 2.
They appear to be manufactured for GM by Bowtech. Which in my opinion is a darn good bow manufacturer.
The exterminator appears to have the same general over all shape, and cam/idler wheel that a black ice has with the flx guard on it. They also advertise the same IBO speeds, so I would venture to guess it is a great shooting bow.
the Elite appears to be similar to that of a Stud made by Diamond, which is also a good shooting bow, however not quite as good as the black ice (IMO).
The Elite 2 I am not sure about, it looks as though it has a similar cam to the Rock, however the shape of the riser and limbs are completely different, and IMO the rock shoots like its name, a rock, just my opinion though.
Like I said I have no experience with these bows, never fired one, or held one, however I can tell you that Bowtech/Diamond, make bows for both Bass Pro, and Cabelas, and would not surprise me if these are similar.
and if that exterminator shoots like a Black Ice, you cant go wrong there!