Anyone familiar enough with these to offer some insights?
How about if you give us a simple summary of what you understand that each philosopher says, that is relevant to abortion? And then we can say if and how we think it relates to abortion.
I'll try . . . after a very brief Net investigation > Kant thinks there are morals, that these are not based on consequences of our actions but morals need to be guided by our duty.
So, in the case of a possible abortion, then, I suppose he would ask is it the duty of the person to keep the child . . . or the duty to kill the child? I suppose he might say it is the duty to keep the mother alive, but her duty to care for her child if she can. So, there might be cases in which he would say it is duty not to have an abortion . . . maybe for the mother's own good, even, so she would not later have conscience problems, and for the good of other family members who need to love and therefore need her child to love. But what if she was an essential law enforcement or military person or other professional highly needed, and ones could be in trouble if she stopped her work, even just long enough to have proper medical care while giving birth to her baby?
Duty alone could be argued in different ways, I can see.
It seems Hegel believed there is such a thing as what is rational, and what is rational is so clear that you can have very clear ideals to go by. So, what would be the rational ideal to go by, in the case of considering an abortion, then? I suppose one ideal would be, "Don't do what can hurt anyone." But this might not answer if the unborn is someone, or not. And in case a woman wants to kill, essentially, the one she fears her child will become later in her life . . . is that good for her? And in case she already fears/hates that potential future person . . . would it be good for him or her to be born and then live with someone who is so able to hate and fear him or her? Well, she might be in for a surprise, how a mother can plan to give birth to her child and not keep him or her, but then she can so bond with her baby at birth. Are there women who fear falling in love with their babies, then? Ones have been hurt in the sort of love that they fell into, possibly; so, for all I know, a woman could fear this happening with someone she can't later just dump or divorce. The ideal might not be clear, might not be rational . . . considering how unique and complicated each person can be.
Ok, so I have bluffed being a philosopher. You are welcome to make a more clear summary of each guy, if you please
so we can comment on how you understand Kant and Hegel.