I will preface this by noting that anything I say is purely anecdotal in nature and based only on my personal experiences living in Ghana and attending the University of Ghana as an exchange student...
Word is that UGSOM is the best medical school in West Africa. The institution as a whole does a good job at educating its students (by somewhat lesser standards than a US institution). The library on campus is also one of the best in West Africa.
If you want to live/practice in Ghana or West Africa or want an education in tropical diseases that you can't get in the US then UG is a good place to do that. (I always tell people that I felt safer being screened for malaria in Ghana than after I got back -- Ghanaian doctors actually know what to look for!)
Now, I noticed that you are a St. Luke student, so no offense intended with the "best medical school in West Africa" comment, it's just what I heard! Are you considering UG instead of St. Luke?