FL-7 crushes your face.
Seriously though... I'd imagine FL bot would summon drumkit from hell then its incompatibility would be its undoing.
Oh shit, but reason doesnt run vsti's at all afaik.
So cubase could just sling a whole line of incompatible VSTI's at both of them, like GVI, Trilogy Bass, Drumkitfromhell, EWQL orchestra trying to use more than 2 GB without DFD, or Synful orchestra. That ought to learn them.
Until sonar crushed cubase's children.