Ferment each batch with neutral American yeast and dry hop each half with a single, different New world varietal (i.e. Citra vs. Galaxy or some such)
Voters:
Ferment one batch with American yeast and one with English. Dry hop the American with a solid New world varietal and the English with a solid English varietal (Citra vs. East Kent Goldings or some such)
Voters:
Keep everything the same in each half except use American yeast in one and English yeast in the other as a pure example of yeast differences.
Voters:
I don't give a crap, just make some beer. It's god damn hot out...
Voters: