I think the answer depends on a couple things. One is what you think you would like to do in the future. If you want to do primary care, where you go to school will have little effect on your future. CCOM is a very established program, one of the oldest DO schools in the country. It is a known quantity - graduates have placed into good residencies in all specialties. In addition, CCOM has the benefit of being near/in a large urban area - if that is something that is attractive to you.
LECOM-Bradenton's benefits include the PBL curriculum, if that is something that's attractive to you, and a warm, sunny location. Being new, however, the success of graduates is not known - one could look at LECOM-Erie for history, but one does not know if it will be the same. Again, if you are interested in primary care, the difference would be negligible.
I chose LECOM-Bradenton for the reasons of PBL and location. I am happy, but sometimes wish my future opportunities were more certain.