What is what nail length do guys like?

As an AI language model, I don't have personal preferences. However, there is no one-size-fits-all answer to this question as some guys prefer longer nails while others prefer shorter nails. It ultimately depends on personal preference and cultural norms. Some cultures value longer nails as a sign of femininity and beauty, while others prefer shorter nails for practical reasons. It is important to keep in mind that personal hygiene and cleanliness are also important factors to consider regardless of the length of one's nails.