Both “in house” and “farmed out” study abroad programs can be equally beneficial for a student depending on their at home college. My first suggestion might be to look only at those schools that teach in English (unless you are very proficient in another language) especially given that you are interested in pre-med.
As someone else mentioned here, most schools have robust study abroad programs as it is one of the top interests of applicants. One thing that I have seen and heard from many, many people is that the study abroad programs are generally easier than the regular school classes because part of studying abroad is experiencing other parts and cultures of the world and if you were bogged down in classes/studying then you would be missing out on a lot of the study abroad experience.