In that case, if you have the room, I'd go:
VR2 front
VRX sides
CR9 rear
if you don't have the room, then swap out the CR9 with the HD5.
Generally you'll get better sound out of bi/di surrounds when they are on the side wall. Of course each room and each person is different,... best way to find out what will work best for you is to try them out in various positions.