My gf had a good experience with Mercy when giving birth to our daughter, but I personally have had zero good experiences with Mercy any time ive needed medical attention and ended up there. Any time Ive had a choice, I'd go to Cox for care as Ive had better luck and they listen to me. Mercy is also a catholic hospital if that is anyway a factor for you. However, I have never been pregnant so I cannot rate either hospitals care on that aspect, only my personal bias.