2. So Milestone and Archie heroes are part of the regular DCU. Something Marvel has never done. They have never added all the different properties they own to the regular Marvelverse and DC has always "assimilated" its acquisitions.
DC used to place aquired properties in other Universes. (Shazam, Freedom Fighters) but since Crisis they been all on one Earth.
Other than Malibu, I cant think of any properties Marvel has bought outright. They did make Godzilla part of the MU when they had the rights. Same for Micronuats and ROM. Conan was part of the MU too for awhile.