I’m don’t prefer one design over the other but just to be more accurate the design with the spherical rod ends on the inside has the rod end bolts in double shear not single shear. The design with the spherical rod end at the upright is single shear. Double shear is always preferable. Single shear or double shear is really referring to the way the through bolt is supported. Single shear rod end design is commonly seen as outboard joints. Designed correctly and sized correctly they are perfectly acceptable. The load on the rod end is the same mounted either way as long as the fastener used in the single shear arrangement is correct for the job. One penalty for using rod ends with the fastener in single shear is that they are usually oversized to accommodate a fastener big enough to handle the load. My race cars typically used rod ends held between two tabs (bolt in double shear) for the inside points and a combo of single and double shear bolted rod end and spherical bearing inserts outboard. We never had a rod end or spherical bearing or suspension failure.
One penalty for in board rod ends is the potentially for a harsher ride. For my P-car I would choose the design with the outboard spherical bearing.
There are many grades and types of rod ends. The high quality ones can handle substantial loads if used properly. A friend of mine worked for a group that prepared Porsche 962s for US racing. From the factory the 962s came with sheet aluminum front bulkheads and tiny rod ends mounted with bolts in double shear. 8mm units. They would replace the bulkheads with machined aluminum ones and increase the size of the rod ends in some cases. Not that the factory design wasn’t strong enough but they were after better reliability. Their cars won many IMSA races and championships.
Mike