Which Orc hero do you prefer?

P.S. IMHO, it would be interesting to play a tournament focused on collecting goblins, similar to the skeleton collection tournaments in the third game.

Great idea! Lord, take note...
Regarding Shaka...
I don't think he's a promising hero for the late game; Goshak looks much stronger. His warlords simply obliterate enemy stacks! As for Shaka, well, you'll have more experience for your zealots, and they'll survive a bit longer... The Stronghold army should focus on quickly eliminating the enemy. Without specializing in attack, it's no longer a Stronghold...