Alexander the Great inherited most of his success from his father. Although a competent and ambitious commander, he would have been a nobody if his daddy hadn’t been Mr. big shot.
And yet most people who inherited the same as he did would have done nothing of note with it and faded into obscurity. Like most of the Macedonian kings before and not long after.
Many people have inherited great power and wealth and squandered it. That's the default case.
Philip inherited too. He built on his father's very considerable success, just like Alexander built on his father's.
Amyntas III -> Philip II -> Alexander III
They're a dynastic set. There's not a lot of sense in separating and comparing them.
But in terms of lasting impact, it's not even close. Philip II exerted control over Greece for a brief time but didn't change much. Alexander changed the entire world permanently.
