Also Davenport was many more weeks number 1 and finished 4 times as year end number 1
And 3 diferent slams including Wimbledon + Gold Medal >>> 3 us open + australian open
Sorry but a lot of Davenport´s weeks at number one were post 2000, when she won her last slam, if anything she benefited from the flawed ranking system that rewards quantity vs quality. Not that Kim did not profited from this in 2003, but still, Davenport gets a lot of credit from the weeks at number one and she was not number one for that much time between 98-2000 when she won her slams..
More to that Kim won 3 of her slams having to go throught the Williams sisters, and she basically just won the Australian Open 2011 over the generation suck players.
This is a super difficult question, i think think the slam win tops everything else, here is no different ...
Kim also leads their head to head 9-8 just as barely her carreer over Lindsay... This is so tough..
Otherwise we should assume that players like Conchita, Sabatini > Peak Mary