I did the paragon route in both ME 1 and 2 however the one with the collecter station had me thinking for a moment. In the end i destroyed it beacause i think reaper tech is to dangerous and its just more dangerous in the hands of Cerberus. The reaper IFF was the reason that the normandy S2 crew got captured.
it would be interesting to see what happens in ME3 if we keep the collector base intact and sour our terms with the illusive man in the end