So, when I was playing, I chose Oru and focused on developing her Chaos skills. But I realized (after the game, although I still won) that Chaos skills have some significant drawbacks (no mass spells, a weak early-game build, etc.). So, against a human player, I would choose the following:
1) Darkness (Mind Lord and everything related)
2) Light (Seal of Light) / Summoning (simply Expert) - you need to adapt based on the spells available in the guild
3) Education (on the path to Mentor)
4) Sorcery (anyway)
5) You can choose Logistics/Attack/Defense, depending on what you get, but I would delay developing the 5th ability and focus on maxing out the top 4 first (if Logistics appears, you should take it... well, if you reach level 10, of course).
Only develop additional perks in abilities if you have time left!!!! If the human player isn't stupid, they should rush to the Academic as quickly as possible...

Added 3 minutes later
A hero like Oru, with Razazak for hit-and-run tactics, with 7 stacks of 2 golems each, with Battle to the Last and Armageddon (Expert Chaos), Sorcery, and Education... The human player has little chance, and if you also prolong the game, the Academic's chances of winning are 80% (if the player is skilled)....