what's the best counter to zQGJ team variations?

This is another reason why Asajj is a highly underrated character. Her AoE dispel doesn't care about foresight - it will strip the foresight away *and* the tenacity up and whatever else those Jedi have got going on. If they've all got foresight up again the next turn, she's got an AoE attack on a separate cooldown. And unlike B2, her basic attacks are actually occasionally relevant to the outcome of the fight.