If you don't have a preference, close your eyes and point - or just guess and choose one which is cheap but not the cheapest. It's simple to narrow a choice if you're not that bothered, while leaving the full choice for those who are.

I've no particular objection to killing conjoined twins, or indeed infants in general (I think the Greek limit of 30 days after birth was a fairly good one, when it comes to abortion). I just object to the doublethink.