Of the four main ones (and really, the only sexual orientations I understand and recognize), I would choose in this order: 1. asexual 2. bisexual 3. straight (gynophilia) 4. gay (androphilia) My reasoning here is that the way my brain is wired, it is almost impossible for me to make regular friends, let alone someone to be my romantic partner. I've never had one and likely never will, in which case it's best if I never like anyone to begin with, so I pick asexual. Barring that, if I did have sexual attraction, it would be best to have my dating pool as big as possible, so I'd pick bisexual for #2. If I couldn't be bisexual, the next best choice would be straight, since again my dating pool with women would be a lot bigger than with men. The worst sexual orientation for me is being gay, since the dating pool is so small on top of having horrible social skills. And guess which one I ended up with... So what would you pick if it were a choice?