My ratio has constantly changed throughout my life (men-women): 100:0 untill I was about 8, 80:20 till 12, 65:35 till 17, 35:66 till 24, and now 20:80. My first Lesbian experience was age 17, which changed my entire view on women.
Although I do lean towards women much more. I would say I'm a 5.75 on the Kinsey Scale. I greatly prefer women but there are plenty of men (mostly bi men!) who I like as well.