Idk what comp there is to go more than vanguards and probably PHD(feels so shit cuz of counterd by RMD) or how this comps should be played to 100% but since you Elizabeth are 2.9 CR you maybe could come up with some tips on what comp you should run as a ret and also if you got any tip how to counter RMD as PHD.
I think Ret/Hunter is still your best option atm. You can't really run it with a priest anymore because they need classes like mage/rogue to make up for their lack of solid healing. It's hard beating an RMD but in general you want to hit the druid since mages aren't squishy anymore and rogues got too many CDs to get through. It doesn't hurt hitting rogues every now and then to gradually force his evasions and wall and you may catch him with no CDs on your wings.
Ret/Mage/Druid seems like a comp that could work but I can't see many mages and druids taking a ret over rogue, sp or even a warrior.