If your ideological imperative is to elevate individual choice as a means of self-expression in every realm, isn't it ironic that you would seize on names - that aspect of identity in which all our choices are chosen by someone else - for your crusade? Keeping your name is choosing your father's choice, changing it is choosing your husband's father's choice, combining them is choosing the choices of all of the above. The only authentically self-expressive choice is inventing your own names - first and last - from scratch.
In that spirit, I shall be changing my own name to Mr. Sophrosune Self-Important. (I will not be changing my gender, only the salutation by which you must address me, because confusing and annoying people reflects an essential part of my self-identity and I desire my name to convey it.) Try tracking my genealogy from that, Andrew Stevens.
UPDATE: On second thought, this morning I find that a better reflection of my selfhood would be expressed in the name Mrs. Benjamin Franklin Snodgrass. I do embrace my sex, after all, and I also admire Benjamin Franklin and wish to revive the nineteenth century American tradition of giving children the full name of a great figure, plus the familial surname. I think Snodgrass is a good-sounding surname. At least for today.