How to choose between BasicMed an a Class III Medical?
I guess it depends on whether you intend to fly a larger aircraft at higher altitudes at faster speeds or one with a limited number of passengers at lower altitiudes and airspeeds.  If the latter is going to be the only flying you do, then a basic medical will be a good choice.  If you intende to undergo additional training and obtain additional certificates, ratings, or type ratings, I believe you will be required to hold at least a third class medical to do so.