Well, the Justice Party, with most of the same policies as the Green Party, did terribly in 2012, though that might have been because it was a one-man political vehicle for Rocky Anderson.
Hmm... well, the Democrats and Republicans have pretty generic names, so we need something as generic as that. Progressive Party might work, as would Justice Party, but they could also revive the Populist Party or the Whigs or something like that.
