AfD by far. The GOP is a big-tent party, whereas the AfD is staunchly conservative.
I don't think you can call AfD staunchly anything, except perhaps anti-foreigner. The only thing that makes this question at all difficult is AfD's admitted lack of any principles outside stopping immigration.
Many don't believe in climate change and (from what I can gather) are less protectionist and are more for tax cuts than people like Marine Le Pen. In addition, I believe they spoke out against the SSM decision.
Poll
