Given information they knew at the time, did Gaius Julius Caesar or Alexander the Great of Macedon prepare their family for success better? If all land were interchangable, then having more land counts, for example, being fabulously wealthy and controling a 400,000 square mile polity would not be as good as being fabulously wealthy and controlling 30% of a polity that used to be 3,000,000 square miles but got stuck in a civil war. However, land is not all interchangeable, so size only can't be the way to go.
It seems obvious Julius Caesar had the better succession plan. After all, his adopted son became Augustus and the family ruled over Rome. Meanwhile, Phillip III and Alexander IV were the end of the line for their family's rule over Macedon. Julius Caesar unambitiously made his grandnephew Octavius his heir in his will, so good step for preparing that. For Caesar, he had no way of knowing that Lucious Antonius and Fulvia (almost certainly with Marcus Antonius's support given that his wife was in on it) would turn on Octavian.
Was it true that Julius Caesar had the better plan given knowledge he knew at that time? For Alexander the great, Antipater, Ptolemy, and Lysimachus appeared to be loyal officers like Parmenion. Imagine a timeline where the first 3 were 100% loyal to the royal family. Well, history would be more or less the same until Alexander's death. So it isn't like he had any indication that Ptolemy would try to carve out an independent power base. Alexander left his legacy to an apparently loyal officer crop thinking they could carry it out. Caesar named his heir but seemed to have not done much more preparation either. Maybe both of them didn't have great succession plans and Caesar's family ended up better by luck?
It seems obvious Julius Caesar had the better succession plan. After all, his adopted son became Augustus and the family ruled over Rome. Meanwhile, Phillip III and Alexander IV were the end of the line for their family's rule over Macedon. Julius Caesar unambitiously made his grandnephew Octavius his heir in his will, so good step for preparing that. For Caesar, he had no way of knowing that Lucious Antonius and Fulvia (almost certainly with Marcus Antonius's support given that his wife was in on it) would turn on Octavian.
Was it true that Julius Caesar had the better plan given knowledge he knew at that time? For Alexander the great, Antipater, Ptolemy, and Lysimachus appeared to be loyal officers like Parmenion. Imagine a timeline where the first 3 were 100% loyal to the royal family. Well, history would be more or less the same until Alexander's death. So it isn't like he had any indication that Ptolemy would try to carve out an independent power base. Alexander left his legacy to an apparently loyal officer crop thinking they could carry it out. Caesar named his heir but seemed to have not done much more preparation either. Maybe both of them didn't have great succession plans and Caesar's family ended up better by luck?