I'm not a fan of subjective ratings anyway, but the answer is woman can't compete with males but not because they're not competitive. I've seen recent lists that rate the top 15-20 rock-pop guitarists without a single female. I could name at least a few. I can understand gender lists for most sports but not with string instruments. Recent lists of classical violinists included a number of women although there were more men. However almost all of the woman were active whereas a number of the men were inactive or dead. I include this list which considers more than skill; but only to show some pretty good musicians. The list is dated 2014 which is why I think Nita Strauss (a direct descendant of Johann) is not included.