Serious Relationship

How important are factors such as age, education, race, ethnicity, social class, gender, and religion in your choice of someone for a serious relationship?  To what extent are (were) you conscious of such influences when you pick (picked) someone to date? I am of the Gen X generation. I am very conscious of these influences. It is important to me that I seriously date someone closer to my age because we may share more in common, for instance, music, we may be more aligned in the same social class. Gender is extremely important. I am non-judgemental and support all people in their choice of who they love/date/marry etc. Gender is important to me because my attraction is specific to the opposite sex.  Race and ethnicity are unimportant I am concerned more of a personal character and the way I am treated as a human being.  Please do not use my exact words. I provided this information in the direction of my preferences.