Why not look at the most polarizing topic first?  There are other ways of looking at Abortion legality, like trimester, contraceptives, planned parenthood, etc.  But I thought I would just get down to brass tacks.  What do you believe should be legal?  These categories align with how the United Nations defined national abortion law categories in this 2013 report:   https://www.un.org/en/development/desa/population/publications/pdf/policy/WorldAbortionPolicies2013/WorldAbortionPolicies2