Topband: Deploy two receivers - Request for Advice

[Art]

I just got a new rig which contains two complete receivers equal in 
specification. Now on to effective deployment. I have the capability for 
a different antenna in each receiver, like transmit GP and Beverage, 
OCFD and Beverage etc. Any deployment tips from users similarly equipped 
will be greatly appreciated. The low band antennas are:

NE-SW Beverage
OCFD about 55 ft high
80/160M ground plane 1/4 wave on 80

For diversity where should I start?

73 Art