Fork in the Road: Start grinding to Padme--> GAS vs DRevan --> Malak??

With that line up, I'd say dr/malak. That squad is still able to beat just about anybody. Dr, bsf, hk, malak, Han beat gas. Dr, bsf, hk, malak, thrawn beat padme.
For mirrors dr, bsf, hk, malak, sith marauder/sith empire trooper.
They can also take down gl kylo squads without his ultimate.
Obviously getting good droids and a geo squad-> padme->gas would give you 4 top tier squads but it's a long way off and can be your focus after getting dr/malak.
Just my two cents :-)