Would you rather be heterozygous for cystic fibrosis or for huntington's disease? why?

The key to answering this question is to know how these disease inherited. Huntington's is autosomal dominant which means you just need one allele to make it express. Cystic fibrosis is an autosomal recessive which means you need both allele to make is express. In heterozygous, only autosomal dominant disease will appear

Answer: Cystic fibrosis