Sorry, I was just irritated by "Akbar the Great" - since "Akbar" means "Great", that would be "Great the Great". Not irritated with you, just that people keep calling him that.
Anyway, as he wasn't the originator of the state, which was at high tide anyway, I'm not sure how much difference there would have been, although obviously decisions made by rulers can direct the energies of the State. I would have to know more about the policy concerns of alternates to really answer the question.
It's sort of like "What if Suleyman the Magnificent" had died in early childhood?
The answer would be, instead of "the Magnificent", he would be referred to by a footnote in some obscure treatise, at best, and one of his equally or more talented siblings would have become Sultan, maybe "Yusuf the Great" or something like that.