Well, lesbians are GGs too. You mean lesbian GGs vs. hetero GGs.

And no, lesbian GGs are not more supportive. There are quite a few lesbians who feel that CDers appropriate women's roles in order to infiltrate womanhood so to speak, and they don't like it. The non-militant lesbians might not feel as outraged, but I'm sure that among them you'll find an equal amount of disinterestedness, tolerance, or patient amusement as you would among hetero GGs.

Last, if you're looking for a romantic relationship, no lesbian will be interested. They're into women and not male-bodied individuals who engage in cross-gender expression.

Sorry to be so harsh, but really your best chances for a romantic relationship if this is what you're looking for, is among open-minded hetero GGs.