I am going to throw out some wierd race/pers combos for a thought exercise and would welcome feedback.
My baseline:
Def should lower your net to lower losses from attacks (def/net)
Off should increase your net for higher returns on attacks (off/acre)
Trad is bonus, CQ is mainlined
All Elites are used as offensive units
Here are my "what if's"
FA/WA: 6:5 Elites:Dspec : Highest CQ range with most inflated offensive unit net
Elf/WH: 1:1 Elite:Dspec : -Your losses +Thier losses