It's commonly accepted in cricket that a left arm bowler has an advantage against right handed batsmen (who make up around 80% of batsmen according to stats) due to the larger angle of attack that he can create.
However there have been a lack of ATG left arm fast bowlers to date barring Wasim Akram who is a bonafide ATG and Davidson who mostly played during the post-war era where arguably the standard of cricket was lower. Next in line beyond these 2 you have bowlers like Vaas, Zaheer Khan and Johnson who are nowhere near ATG status.
Meanwhile, there's been no shortage of ATG left handed batsmen however ie Lara, Sangakkara, Sobers, Border, Gilchrist, Hayden, G Smith, Chanderpaul, etc.
However there have been a lack of ATG left arm fast bowlers to date barring Wasim Akram who is a bonafide ATG and Davidson who mostly played during the post-war era where arguably the standard of cricket was lower. Next in line beyond these 2 you have bowlers like Vaas, Zaheer Khan and Johnson who are nowhere near ATG status.
Meanwhile, there's been no shortage of ATG left handed batsmen however ie Lara, Sangakkara, Sobers, Border, Gilchrist, Hayden, G Smith, Chanderpaul, etc.